Anxiety is an emotion which is characterized by an unpleasant state of inner turmoil and includes feelings of dread over anticipated events. Anxiety is different than fear in that the former is defined as the anticipation of a future threat whereas the latter is defined as the emotional response to a real threat. It is often accompanied by nervous behavior such as pacing back and forth, somatic complaints, and rumination.
Anxiety is a feeling of uneasiness and worry, usually generalized and unfocused as an overreaction to a situation that is only subjectively seen as menacing. It is often accompanied by muscular tension, restlessness, fatigue, inability to catch one's breath, tightness in the abdominal region, nausea, and problems in concentration. Anxiety is closely related to fear, which is a response to a real or perceived immediate threat (fight or flight response); anxiety involves the expectation of future threat including dread. People facing anxiety may withdraw from situations which have provoked anxiety in the past.
The emotion of anxiety can persist beyond the developmentally appropriate time-periods in response to specific events, and thus turning into one of the multiple anxiety disorders (e.g. generalized anxiety disorder, panic disorder). The difference between anxiety disorder (as mental disorder) and anxiety (as normal emotion), is that people with an anxiety disorder experience anxiety most of the days during approximately 6 months, or even during shorter time-periods in children. Anxiety disorders are among the most persistent mental problems and often last decades. Besides, strong percepts of anxiety exist within other mental disorders, e.g. obsessive-compulsive disorder, post-traumatic stress disorder.
Anxiety vs. fear
Anxiety is distinguished from fear, which is an appropriate cognitive and emotional response to a perceived threat. Anxiety is related to the specific behaviors of fight-or-flight responses, defensive behavior or escape. There is a false presumption that often circulates that anxiety only occurs in situations perceived as uncontrollable or unavoidable, but this is not always so. David Barlow defines anxiety as "a future-oriented mood state in which one is not ready or prepared to attempt to cope with upcoming negative events," and that it is a distinction between future and present dangers which divides anxiety and fear. Another description of anxiety is agony, dread, terror, or even apprehension. In positive psychology, anxiety is described as the mental state that results from a difficult challenge for which the subject has insufficient coping skills. 
Fear and anxiety can be differentiated into four domains: (1) duration of emotional experience, (2) temporal focus, (3) specificity of the threat, and (4) motivated direction. Fear is short-lived, present-focused, geared towards a specific threat, and facilitating escape from threat. On the other hand, anxiety is long-acting, future-focused, broadly focused towards a diffuse threat, and promoting excessive caution while approaching a potential threat and interferes with constructive coping.
Joseph E. LeDoux and Lisa Feldman Barrett have both sought to separate automatic threat responses from additional associated cognitive activity within anxiety.
Anxiety can be experienced with long, drawn-out daily symptoms that reduce quality of life, known as chronic (or generalized) anxiety, or it can be experienced in short spurts with sporadic, stressful panic attacks, known as acute anxiety. Symptoms of anxiety can range in number, intensity, and frequency, depending on the person. While almost everyone has experienced anxiety at some point in her life, most people do not develop long-term problems with anxiety.
Anxiety can induce several psychological pains (e.g. depression) or mental disorders, and may lead to self-harm or suicide (for which dedicated hotlines exist).
The behavioral effects of anxiety may include withdrawal from situations which have provoked anxiety or negative feelings in the past. Other effects may include changes in sleeping patterns, changes in habits, increase or decrease in food intake, and increased motor tension (such as foot tapping).
The emotional effects of anxiety may include "feelings of apprehension or dread, trouble concentrating, feeling tense or jumpy, anticipating the worst, irritability, restlessness, watching (and waiting) for signs (and occurrences) of danger, and, feeling like your mind's gone blank" as well as "nightmares/bad dreams, obsessions about sensations, déjà vu, a trapped-in-your-mind feeling, and feeling like everything is scary." It may include a vague experience and feeling of helplessness.
The cognitive effects of anxiety may include thoughts about suspected dangers, such as fear of dying: "You may ... fear that the chest pains are a deadly heart attack or that the shooting pains in your head are the result of a tumor or an aneurysm. You feel an intense fear when you think of dying, or you may think of it more often than normal, or can't get it out of your mind."
The physiological symptoms of anxiety may include:
- Neurological, as headache, paresthesias, fasciculations, vertigo, or presyncope.
- Digestive, as abdominal pain, nausea, diarrhea, indigestion, dry mouth, or bolus. Stress hormones released in an anxious state have an impact on bowel function and can manifest physical symptoms that may contribute to or exacerbate IBS.
- Respiratory, as shortness of breath or sighing breathing.
- Cardiac, as palpitations, tachycardia, or chest pain.
- Muscular, as fatigue, tremors, or tetany.
- Cutaneous, as perspiration, or itchy skin.
- Uro-genital, as frequent urination, urinary urgency, dyspareunia, or impotence, chronic pelvic pain syndrome.
There are various types of anxiety. Existential anxiety can occur when a person faces angst, an existential crisis, or nihilistic feelings. People can also face mathematical anxiety, somatic anxiety, stage fright, or test anxiety. Social anxiety refers to a fear of rejection and negative evaluation (being judged) by other people.
The philosopher Søren Kierkegaard, in The Concept of Anxiety (1844), described anxiety or dread associated with the "dizziness of freedom" and suggested the possibility for positive resolution of anxiety through the self-conscious exercise of responsibility and choosing. In Art and Artist (1932), the psychologist Otto Rank wrote that the psychological trauma of birth was the pre-eminent human symbol of existential anxiety and encompasses the creative person's simultaneous fear of – and desire for – separation, individuation, and differentiation.
The theologian Paul Tillich characterized existential anxiety as "the state in which a being is aware of its possible nonbeing" and he listed three categories for the nonbeing and resulting anxiety: ontic (fate and death), moral (guilt and condemnation), and spiritual (emptiness and meaninglessness). According to Tillich, the last of these three types of existential anxiety, i.e. spiritual anxiety, is predominant in modern times while the others were predominant in earlier periods. Tillich argues that this anxiety can be accepted as part of the human condition or it can be resisted but with negative consequences. In its pathological form, spiritual anxiety may tend to "drive the person toward the creation of certitude in systems of meaning which are supported by tradition and authority" even though such "undoubted certitude is not built on the rock of reality".
According to Viktor Frankl, the author of Man's Search for Meaning, when a person is faced with extreme mortal dangers, the most basic of all human wishes is to find a meaning of life to combat the "trauma of nonbeing" as death is near.
Depending on the source of the threat, psychoanalytic theory distinguishes the following types of anxiety:
Test and performance
According to Yerkes-Dodson law, an optimal level of arousal is necessary to best complete a task such as an exam, performance, or competitive event. However, when the anxiety or level of arousal exceeds that optimum, the result is a decline in performance.
Test anxiety is the uneasiness, apprehension, or nervousness felt by students who have a fear of failing an exam. Students who have test anxiety may experience any of the following: the association of grades with personal worth; fear of embarrassment by a teacher; fear of alienation from parents or friends; time pressures; or feeling a loss of control. Sweating, dizziness, headaches, racing heartbeats, nausea, fidgeting, uncontrollable crying or laughing and drumming on a desk are all common. Because test anxiety hinges on fear of negative evaluation, debate exists as to whether test anxiety is itself a unique anxiety disorder or whether it is a specific type of social phobia. The DSM-IV classifies test anxiety as a type of social phobia.
While the term "test anxiety" refers specifically to students, many workers share the same experience with regard to their career or profession. The fear of failing at a task and being negatively evaluated for failure can have a similarly negative effect on the adult. Management of test anxiety focuses on achieving relaxation and developing mechanisms to manage anxiety.
Test anxiety remains a challenge for students and has considerable physiological and psychological impacts. The routine practice of slow, Device-Guided Breathing (DGB) is a major component of behavioral treatments for anxiety conditions.
Humans generally require social acceptance and thus sometimes dread the disapproval of others. Apprehension of being judged by others may cause anxiety in social environments.
Anxiety during social interactions, particularly between strangers, is common among young people. It may persist into adulthood and become social anxiety or social phobia. "Stranger anxiety" in small children is not considered a phobia. In adults, an excessive fear of other people is not a developmentally common stage; it is called social anxiety. According to Cutting, social phobics do not fear the crowd but the fact that they may be judged negatively.
Social anxiety varies in degree and severity. For some people, it is characterized by experiencing discomfort or awkwardness during physical social contact (e.g. embracing, shaking hands, etc.), while in other cases it can lead to a fear of interacting with unfamiliar people altogether. Those with this condition may restrict their lifestyles to accommodate the anxiety, minimizing social interaction whenever possible. Social anxiety also forms a core aspect of certain personality disorders, including avoidant personality disorder.
To the extent that a person is fearful of social encounters with unfamiliar others, some people may experience anxiety particularly during interactions with outgroup members, or people who share different group memberships (i.e., by race, ethnicity, class, gender, etc.). Depending on the nature of the antecedent relations, cognitions, and situational factors, intergroup contact may be stressful and lead to feelings of anxiety. This apprehension or fear of contact with outgroup members is often called interracial or intergroup anxiety.
As is the case with the more generalized forms of social anxiety, intergroup anxiety has behavioral, cognitive, and affective effects. For instance, increases in schematic processing and simplified information processing can occur when anxiety is high. Indeed, such is consistent with related work on attentional bias in implicit memory. Additionally recent research has found that implicit racial evaluations (i.e. automatic prejudiced attitudes) can be amplified during intergroup interaction. Negative experiences have been illustrated in producing not only negative expectations, but also avoidant, or antagonistic, behavior such as hostility. Furthermore, when compared to anxiety levels and cognitive effort (e.g., impression management and self-presentation) in intragroup contexts, levels and depletion of resources may be exacerbated in the intergroup situation.
Anxiety can be either a short-term "state" or a long-term personality "trait." Trait anxiety reflects a stable tendency across the lifespan of responding with acute, state anxiety in the anticipation of threatening situations (whether they are actually deemed threatening or not). A meta-analysis showed that a high level of neuroticism is a risk factor for development of anxiety symptoms and disorders. Such anxiety may be conscious or unconscious.
Personality can also be a trait leading to anxiety and depression and their persistence. Through experience, many find it difficult to collect themselves due to their own personal nature.
Choice or decision
Anxiety induced by the need to choose between similar options is increasingly being recognized as a problem for individuals and for organizations. In 2004, Capgemini wrote: "Today we're all faced with greater choice, more competition and less time to consider our options or seek out the right advice."
In a decision context, unpredictability or uncertainty may trigger emotional responses in anxious individuals that systematically alter decision-making. There are primarily two forms of this anxiety type. The first form refers to a choice in which there are multiple potential outcomes with known or calculable probabilities. The second form refers to the uncertainty and ambiguity related to a decision context in which there are multiple possible outcomes with unknown probabilities.
Panic disorder may share symptoms of stress and anxiety, but it is actually very different. Panic disorder is an anxiety disorder that occurs without any triggers. According to the U.S. Department of Health and Human Services, this disorder can be distinguished by unexpected and repeated episodes of intense fear. Someone with panic disorder will eventually develop constant fear of another attack and as this progresses it will begin to affect daily functioning and an individual's general quality of life. It is reported by the Cleveland Clinic that panic disorder affects 2 to 3 percent of adult Americans and can begin around the time of the teenage and early adult years. Some symptoms include: difficulty breathing, chest pain, dizziness, trembling or shaking, feeling faint, nausea, fear that you are losing control or are about to die. Even though they have these symptoms during an attack, the main symptom is the persistent fear of having future panic attacks.
Anxiety disorders are a group of mental disorders characterized by exaggerated feelings of anxiety and fear responses. Anxiety is a worry about future events and fear is a reaction to current events. These feelings may cause physical symptoms, such as a fast heart rate and shakiness. There are a number of anxiety disorders: including generalized anxiety disorder, specific phobia, social anxiety disorder, separation anxiety disorder, agoraphobia, panic disorder, and selective mutism. The disorder differs by what results in the symptoms. People often have more than one anxiety disorder.
Anxiety disorders are caused by a complex combination of genetic and environmental factors. To be diagnosed, symptoms typically need to be present for at least six months, be more than would be expected for the situation, and decrease a person's ability to function in their daily lives. Other problems that may result in similar symptoms include hyperthyroidism, heart disease, caffeine, alcohol, or cannabis use, and withdrawal from certain drugs, among others.
Without treatment, anxiety disorders tend to remain. Treatment may include lifestyle changes, counselling, and medications. Counselling is typically with a type of cognitive behavioural therapy. Medications, such as antidepressants or beta blockers, may improve symptoms.
About 12% of people are affected by an anxiety disorder in a given year and between 12–30% are affected at some point in their life. They occur about twice as often in women than they do in men, and generally begin before the age of 25. The most common are specific phobia which affects nearly 12% and social anxiety disorder which affects 10% at some point in their life. They affect those between the ages of 15 and 35 the most and become less common after the age of 55. Rates appear to be higher in the United States and Europe.
Short- and long-term anxiety
Anxiety can be either a short-term "state" or a long-term "trait." Whereas trait anxiety represents worrying about future events, anxiety disorders are a group of mental disorders characterized by feelings of anxiety and fears.
Four ways to be anxious
In his book Anxious: the modern mind in the age of anxiety Joseph LeDoux examines four experiences of anxiety through a brain-based lens:
- In the presence of an existing or imminent external threat, you worry about the event and its implications for your physical and/or psychological well-being. When a threat signal occurs, it signifies either that danger is present or near in space and time or that it might be coming in the future. Nonconscious threats processing by the brain activates defensive survival circuits, resulting in changes in information processing in the brain, controlled in part by increases in arousal and behavioral and physiological responses in the body that then produce signals that feed back to the brain and complement the physiological changes there, intensifying them and extending their duration.
- When you notice body sensations, you worry about what they might mean for your physical and/or psychological well-being. The trigger stimulus does not have to be an external stimulus but can be an internal one, as some people are particularly sensitive to body signals.
- Thoughts and memories may lead to you to worry about your physical and/or psychological well-being. We do not need to be presence of an external or internal stimulus to be anxious. An episodic memory of a past trauma or of a panic attack in the past is sufficient to activate the defence circuits.
- Thoughts and memories may result in existential dread, such as worry about leading a meaningful life or the eventuality of death. Examples are contemplations of whether one's life has been meaningful, the inevitability of death, or the difficulty of making decisions that have a moral value. These do not necessarily activate defensive systems; they are more or less pure forms of cognitive anxiety.
Anxiety disorders often occur with other mental health disorders, particularly major depressive disorder, bipolar disorder, eating disorders, or certain personality disorders. It also commonly occurs with personality traits such as neuroticism. This observed co-occurrence is partly due to genetic and environmental influences shared between these traits and anxiety.
It is common for those with obsessive–compulsive disorder to experience anxiety. Anxiety is also commonly found in those who experience panic disorders, phobic anxiety disorders, severe stress, dissociative disorders, somatoform disorders, and some neurotic disorders. Anxiety has also been linked to the experience of intrusive thoughts. Studies have revealed that individuals who experience high levels of anxiety (also known as clinical anxiety) are highly vulnerable to the experience of intense intrusive thoughts or psychological disorders that are characterised by intrusive thoughts.
Anxiety disorders are partly genetic, with twin studies suggesting 30-40% genetic influence on individual differences in anxiety. Environmental factors are also important. Twin studies show that individual-specific environments have a large influence on anxiety, whereas shared environmental influences (environments that affect twins in the same way) operate during childhood but decline through adolescence. Specific measured 'environments' that have been associated with anxiety include child abuse, family history of mental health disorders, and poverty. Anxiety is also associated with drug use, including alcohol, caffeine, and benzodiazepines (which are often prescribed to treat anxiety).
Neural circuitry involving the amygdala (which regulates emotions like anxiety and fear, stimulating the HPA axis and sympathetic nervous system) and hippocampus (which is implicated in emotional memory along with the amygdala) is thought to underlie anxiety. People who have anxiety tend to show high activity in response to emotional stimuli in the amygdala. Some writers believe that excessive anxiety can lead to an overpotentiation of the limbic system (which includes the amygdala and nucleus accumbens), giving increased future anxiety, but this does not appear to have been proven.
Research upon adolescents who as infants had been highly apprehensive, vigilant, and fearful finds that their nucleus accumbens is more sensitive than that in other people when deciding to make an action that determined whether they received a reward. This suggests a link between circuits responsible for fear and also reward in anxious people. As researchers note, "a sense of 'responsibility', or self-agency, in a context of uncertainty (probabilistic outcomes) drives the neural system underlying appetitive motivation (i.e., nucleus accumbens) more strongly in temperamentally inhibited than noninhibited adolescents".
The gut-brain axis
The microbes of the gut can connect with the brain to affect anxiety. There are various pathways along which this communication can take place. One is through the major neurotransmitters. The gut microbes such as Bifidobacterium and Bacillus produce the neurotransmitters GABA and dopamine, respectively. The neurotransmitters signal to the nervous system of the gastrointestinal tract, and those signals will be carried to the brain through the vagus nerve or the spinal system. This is demonstrated by the fact that altering the microbiome has shown anxiety- and depression-reducing effects in mice, but not in subjects without vagus nerves.
Another key pathway is the HPA axis, as mentioned above. The microbes can control the levels of cytokines in the body, and altering cytokine levels creates direct effects on areas of the brain such as the hypothalamus, the area that triggers HPA axis activity. The HPA axis regulates production of cortisol, a hormone that takes part in the body's stress response. When HPA activity spikes, cortisol levels increase, processing and reducing anxiety in stressful situations. These pathways, as well as the specific effects of individual taxa of microbes, are not yet completely clear, but the communication between the gut microbiome and the brain is undeniable, as is the ability of these pathways to alter anxiety levels.
With this communication comes the potential to treat anxiety. Prebiotics and probiotics have been shown to reduce anxiety. For example, experiments in which mice were given fructo- and galacto-oligosaccharide prebiotics and Lactobacillus probiotics have both demonstrated a capability to reduce anxiety. In humans, results are not as concrete, but promising.
Genetics and family history (e.g. parental anxiety) may put an individual at increased risk of an anxiety disorder, but generally external stimuli will trigger its onset or exacerbation. Estimates of genetic influence on anxiety, based on studies of twins, range from 25 to 40% depending on the specific type and age-group under study. For example, genetic differences account for about 43% of variance in panic disorder and 28% in generalized anxiety disorder. Longitudinal twin studies have shown the moderate stability of anxiety from childhood through to adulthood is mainly influenced by stability in genetic influence. When investigating how anxiety is passed on from parents to children, it is important to account for sharing of genes as well as environments, for example using the intergenerational children-of-twins design.
Many studies in the past used a candidate gene approach to test whether single genes were associated with anxiety. These investigations were based on hypotheses about how certain known genes influence neurotransmitters (such as serotonin and norepinephrine) and hormones (such as cortisol) that are implicated in anxiety. None of these findings are well replicated, with the possible exception of TMEM132D, COMT and MAO-A. The epigenetic signature of BDNF, a gene that codes for a protein called brain derived neurotrophic factor that is found in the brain, has also been associated with anxiety and specific patterns of neural activity. and a receptor gene for BDNF called NTRK2 was associated with anxiety in a large genome-wide investigation. The reason that most candidate gene findings have not replicated is that anxiety is a complex trait that is influenced by many genomic variants, each of which has a small effect on its own. Increasingly, studies of anxiety are using a hypothesis-free approach to look for parts of the genome that are implicated in anxiety using big enough samples to find associations with variants that have small effects. The largest explorations of the common genetic architecture of anxiety have been facilitated by the UK Biobank, the ANGST consortium and the CRC Fear, Anxiety and Anxiety Disorders.
Many medical conditions can cause anxiety. This includes conditions that affect the ability to breathe, like COPD and asthma, and the difficulty in breathing that often occurs near death. Conditions that cause abdominal pain or chest pain can cause anxiety and may in some cases be a somatization of anxiety; the same is true for some sexual dysfunctions. Conditions that affect the face or the skin can cause social anxiety especially among adolescents, and developmental disabilities often lead to social anxiety for children as well. Life-threatening conditions like cancer also cause anxiety.
Furthermore, certain organic diseases may present with anxiety or symptoms that mimic anxiety. These disorders include certain endocrine diseases (hypo- and hyperthyroidism, hyperprolactinemia), metabolic disorders (diabetes), deficiency states (low levels of vitamin D, B2, B12, folic acid), gastrointestinal diseases (celiac disease, non-celiac gluten sensitivity, inflammatory bowel disease), heart diseases, blood diseases (anemia), cerebral vascular accidents (transient ischemic attack, stroke), and brain degenerative diseases (Parkinson's disease, dementia, multiple sclerosis, Huntington's disease), among others.
Several drugs can cause or worsen anxiety, whether in intoxication, withdrawal or as side effect. These include alcohol, tobacco, sedatives (including prescription benzodiazepines), opioids (including prescription pain killers and illicit drugs like heroin), stimulants (such as caffeine, cocaine and amphetamines), hallucinogens, and inhalants.
While many often report self-medicating anxiety with these substances, improvements in anxiety from drugs are usually short-lived (with worsening of anxiety in the long term, sometimes with acute anxiety as soon as the drug effects wear off) and tend to be exaggerated. Acute exposure to toxic levels of benzene may cause euphoria, anxiety, and irritability lasting up to 2 weeks after the exposure.
Poor coping skills (e.g., rigidity/inflexible problem solving, denial, avoidance, impulsivity, extreme self-expectation, negative thoughts, affective instability, and inability to focus on problems) are associated with anxiety. Anxiety is also linked and perpetuated by the person's own pessimistic outcome expectancy and how they cope with feedback negativity. Temperament (e.g., neuroticism) and attitudes (e.g. pessimism) have been found to be risk factors for anxiety.
Cognitive distortions such as overgeneralizing, catastrophizing, mind reading, emotional reasoning, binocular trick, and mental filter can result in anxiety. For example, an overgeneralized belief that something bad "always" happens may lead someone to have excessive fears of even minimally risky situations and to avoid benign social situations due to anticipatory anxiety of embarrassment. In addition, those who have high anxiety can also create future stressful life events. Together, these findings suggest that anxious thoughts can lead to anticipatory anxiety as well as stressful events, which in turn cause more anxiety. Such unhealthy thoughts can be targets for successful treatment with cognitive therapy.
Psychodynamic theory posits that anxiety is often the result of opposing unconscious wishes or fears that manifest via maladaptive defense mechanisms (such as suppression, repression, anticipation, regression, somatization, passive aggression, dissociation) that develop to adapt to problems with early objects (e.g., caregivers) and empathic failures in childhood. For example, persistent parental discouragement of anger may result in repression/suppression of angry feelings which manifests as gastrointestinal distress (somatization) when provoked by another while the anger remains unconscious and outside the individual's awareness. Such conflicts can be targets for successful treatment with psychodynamic therapy. While psychodynamic therapy tends to explore the underlying roots of anxiety, cognitive behavioral therapy has also been shown to be a successful treatment for anxiety by altering irrational thoughts and unwanted behaviors.
An evolutionary psychology explanation is that increased anxiety serves the purpose of increased vigilance regarding potential threats in the environment as well as increased tendency to take proactive actions regarding such possible threats. This may cause false positive reactions but an individual with anxiety may also avoid real threats. This may explain why anxious people are less likely to die due to accidents. There is ample empirical evidence that anxiety can have adaptive value. Within a school, timid fish are more likely than bold fish to survive a predator.
When people are confronted with unpleasant and potentially harmful stimuli such as foul odors or tastes, PET-scans show increased blood flow in the amygdala. In these studies, the participants also reported moderate anxiety. This might indicate that anxiety is a protective mechanism designed to prevent the organism from engaging in potentially harmful behaviors.
Social risk factors for anxiety include a history of trauma (e.g., physical, sexual or emotional abuse or assault), bullying, early life experiences and parenting factors (e.g., rejection, lack of warmth, high hostility, harsh discipline, high parental negative affect, anxious childrearing, modelling of dysfunctional and drug-abusing behaviour, discouragement of emotions, poor socialization, poor attachment, and child abuse and neglect), cultural factors (e.g., stoic families/cultures, persecuted minorities including those with disabilities), and socioeconomics (e.g., uneducated, unemployed, impoverished although developed countries have higher rates of anxiety disorders than developing countries). A 2019 comprehensive systematic review of over 50 studies showed that food insecurity in the United States is strongly associated with depression, anxiety, and sleep disorders. Food-insecure individuals had an almost 3 fold risk increase of testing positive for anxiety when compared to food-secure individuals.
Contextual factors that are thought to contribute to anxiety include gender socialization and learning experiences. In particular, learning mastery (the degree to which people perceive their lives to be under their own control) and instrumentality, which includes such traits as self-confidence, self-efficacy, independence, and competitiveness fully mediate the relation between gender and anxiety. That is, though gender differences in anxiety exist, with higher levels of anxiety in women compared to men, gender socialization and learning mastery explain these gender differences.
The first step in the management of a person with anxiety symptoms involves evaluating the possible presence of an underlying medical cause, the recognition of which is essential in order to decide the correct treatment. Anxiety symptoms may mask an organic disease, or appear associated with or as a result of a medical disorder.
Cognitive behavioral therapy (CBT) is effective for anxiety disorders and is a first line treatment. CBT appears to be equally effective when carried out via the internet. While evidence for mental health apps is promising, it is preliminary.
Psychopharmacological treatment can be used in parallel to CBT or can be used alone. As a general rule, most anxiety disorders respond well to first-line agents. Such drugs, also used as anti-depressants, are the selective serotonin reuptake inhibitors and serotonin-norepinephrine reuptake inhibitors, that work by blocking the reuptake of specific neurotransmitters and resulting in the increase in availability of these neurotransmitters. Additionally, benzodiazepines are often prescribed to individuals with anxiety disorder. Benzodiazepines produce an anxiolytic response by modulating GABA and increasing its receptor binding. A third common treatment involves a category of drug known as serotonin agonists. This category of drug works by initiating a physiological response at 5-HT1A receptor by increasing the action of serotonin at this receptor. Other treatment options include pregabalin, tricyclic antidepressants, and moclobemide, among others.
Anxiety is considered to be a serious psychiatric illness that has an unknown true pervasiveness due to affected individuals not asking for proper treatment or aid, and due to professionals missing the diagnosis.
The above risk factors give natural avenues for prevention. A 2017 review found that psychological or educational interventions have a small yet statistically significant benefit for the prevention of anxiety in varied population types.
Anxiety disorder appears to be a genetically inherited neurochemical dysfunction that may involve autonomic imbalance; decreased GABA-ergic tone; allelic polymorphism of the catechol-O-methyltransferase (COMT) gene; increased adenosine receptor function; increased cortisol.
In the central nervous system (CNS), the major mediators of the symptoms of anxiety disorders appear to be norepinephrine, serotonin, dopamine, and gamma-aminobutyric acid (GABA). Other neurotransmitters and peptides, such as corticotropin-releasing factor, may be involved. Peripherally, the autonomic nervous system, especially the sympathetic nervous system, mediates many of the symptoms. Increased flow in the right parahippocampal region and reduced serotonin type 1A receptor binding in the anterior and posterior cingulate and raphe of patients are the diagnostic factors for prevalence of anxiety disorder.
The amygdala is central to the processing of fear and anxiety, and its function may be disrupted in anxiety disorders. Anxiety processing in the basolateral amygdala has been implicated with expansion of dendritic arborization of the amygdaloid neurons. SK2 potassium channels mediate inhibitory influence on action potentials and reduce arborization.
- List of people with an anxiety disorder
- Philosophy:Angst – Intense feeling of apprehension, anxiety, or inner turmoil
- Philosophy:Fear – Basic emotion induced by a perceived threat
- Medicine:Tripartite Model of Anxiety and Depression
- ↑ Abnormal Psychology. Toronto: Veronica Visentin. 2008. p. 154. ISBN 978-0-470-84072-6.
- ↑ (in en) Expectancy and emotion. OUP Oxford. 2014-11-27. ISBN 978-0-19-150927-8. https://books.google.com/books?id=z0aPBQAAQBAJ&pg=PP1. Retrieved 2022-05-09.
- ↑ Chand, Suma P.; Marwaha, Raman (2022), "Anxiety", StatPearls (Treasure Island (FL): StatPearls Publishing), PMID 29262212, http://www.ncbi.nlm.nih.gov/books/NBK470361/, retrieved 2022-12-15
- ↑ Crocq, M. A. (2015). "A history of anxiety: from Hippocrates to DSM.". Dialogues in Clinical Neuroscience 17 (3): 319–325. doi:10.31887/DCNS.2015.17.3/macrocq. PMID 26487812.
- ↑ Abnormal psychology (4th ed.). New York: W.W. Norton & Company.
- ↑ Psychiatric and Behavioral Disorders in Intellectual and Developmental Disabilities (2nd ed.). Cambridge University Press. 2007. ISBN 9781139461306. https://books.google.com/books?id=E_9Rlqs4T7oC. Retrieved 2018-11-22.
- ↑ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 American Psychiatric Association (2013). Diagnostic and Statistical Manual of Mental Disorders (Fifth ed.). Arlington, VA: American Psychiatric Publishing. p. 189. ISBN 978-0-89042-555-8. https://archive.org/details/diagnosticstatis0005unse/page/189.
- ↑ Chand, SP; Marwaha, R (2022), "article-17728", Anxiety, Treasure Island (FL): StatPearls Publishing, PMID 29262212, http://www.ncbi.nlm.nih.gov/books/NBK470361/, retrieved April 2, 2022, "Anxiety is linked to fear and manifests as a future-oriented mood state that consists of a complex cognitive, affective, physiological, and behavioral response system associated with preparation for the anticipated events or circumstances perceived as threatening."
- ↑ 9.0 9.1 9.2 Psychiatric and Mental Health Nursing: The Craft of Caring. London: Edward Arnold. 2003. ISBN 978-0-340-81026-2.
- ↑ Robinson, Oliver J; Pike, Alexandra C; Cornwell, Brian; Grillon, Christian (June 29, 2019). "The translational neural circuitry of anxiety". Journal of Neurology, Neurosurgery, and Psychiatry (BMJ) 90 (12): jnnp–2019–321400. doi:10.1136/jnnp-2019-321400. ISSN 0022-3050. PMID 31256001. "Anxiety is an adaptive response that promotes harm avoidance, but at the same time excessive anxiety constitutes the most common psychiatric complaint.".
- ↑ Treating and preventing adolescent mental health disorders: what we know and what we don't know. A research agenda for improving the mental health of our youth. New York: Oxford University Press. 2005. doi:10.1093/9780195173642.001.0001. ISBN 978-0-19-517364-2. OCLC 56324679. https://oxfordmedicine.com/view/10.1093/9780195173642.001.0001/med-9780195173642-chapter-10. Retrieved 2021-06-02.
- ↑ 12.0 12.1 Hovenkamp-Hermelink (2021). "Predictors of persistence of anxiety disorders across the lifespan: a systematic review". The Lancet Psychiatry 8 (5): 428–443. doi:10.1016/S2215-0366(20)30433-8. PMID 33581052. https://doi.org/10.1016/S2215-0366(20)30433-8.
- ↑ "Obsessive compulsive and related disorders: comparing DSM-5 and ICD-11". CNS spectrums 21 (4): 324–333. 2016. doi:10.1017/S1092852916000110.
- ↑ World Health Organization (2023). International Classification of Diseases, eleventh revision – ICD-11. Genova – www.icd.who.int.
- ↑ Andreas Dorschel, Furcht und Angst. In: Dietmar Goltschnigg (ed.), Angst. Lähmender Stillstand und Motor des Fortschritts. Stauffenburg, Tübingen 2012, pp. 49–54
- ↑ "On the distinction between fear and anxiety in a (post)pandemic world: a commentary on Schimmenti et al. (2020)". Clinical Neuropsychiatry 17 (3): 189–191. 2020. doi:10.36131/cnfioritieditore20200307. PMID 34908991. PMC 8629083. https://www.clinicalneuropsychiatry.org/download/on-the-distinction-between-fear-and-anxiety-in-a-postpandemic-world-a-commentary-on-schimmenti-et-al-2020/. Retrieved 2020-12-13.
- ↑ "Fear and anxiety: Evolutionary, cognitive, and clinical perspectives". Handbook of emotions. New York: The Guilford Press. 2000. pp. 573–93. ISBN 978-1-57230-529-8. https://archive.org/details/handbookofemotio0000unse/page/573.
- ↑ "Unraveling the mysteries of anxiety and its disorders from the perspective of emotion theory". The American Psychologist 55 (11): 1247–1263. November 2000. doi:10.1037/0003-066X.55.11.1247. PMID 11280938.
- ↑ "What is the difference between existential anxiety and so called neurotic anxiety? 'The sine qua non of true vitality' an examination of the difference between existential anxiety and neurotic anxiety". Existential Analysis 22 (2). 2011. Gale A288874227.
- ↑ Finding Flow. 1997. ISBN 9780465045136. https://archive.org/details/findingflowpsych00csik.
- ↑ Chand, Suma P.; Marwaha, Raman (2022). "Anxiety". StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK470361/#article-17728.s2.
- ↑ "Differences between trait fear and trait anxiety: implications for psychopathology". Clinical Psychology Review 31 (1): 122–137. February 2011. doi:10.1016/j.cpr.2010.08.004. PMID 20817337.
- ↑ "On Fear, Emotions, and Memory: An Interview with Dr. Joseph LeDoux" (in en-US). June 7, 2018. https://brainworldmagazine.com/on-fear-emotions-and-memory-an-interview-with-dr-joseph-ledoux/.
- ↑ "The theory of constructed emotion: an active inference account of interoception and categorization". Social Cognitive and Affective Neuroscience 12 (1): 1–23. January 2017. doi:10.1093/scan/nsw154. PMID 27798257.
- ↑ "Generalized anxiety disorder: acute and chronic treatment". CNS Spectrums 9 (10): 716–723. October 2004. doi:10.1017/S1092852900022367. PMID 15448583.
- ↑ 26.0 26.1 26.2 26.3 26.4 World Health Organization (2009). Pharmacological Treatment of Mental Disorders in Primary Health Care. Geneva. ISBN 978-92-4-154769-7. http://apps.who.int/iris/bitstream/10665/44095/1/9789241547697_eng.pdf.
- ↑ 27.0 27.1 27.2 "Psychiatric emergencies (part I): psychiatric disorders causing organic symptoms". European Review for Medical and Pharmacological Sciences 17 (Suppl 1): 55–64. February 2013. PMID 23436668. http://www.europeanreview.org/article/3083. Retrieved 2018-10-26.
- ↑ "Depression Hotline | Call Our Free, 24 Hour Depression Helpline". PsychGuides.com. https://www.psychguides.com/guides/depression-hotline/.
- ↑ "Anxiety attacks and disorders: Guide to the signs, symptoms, and treatment options.". Helpguide. June 2008. http://www.helpguide.org/mental/anxiety_types_symptoms_treatment.htm.
- ↑ "Anxiety Symptoms, Causes, Treatment". Anxiety Centre. 13 October 2021. http://www.anxietycentre.com/anxiety-symptoms.shtml.
- ↑ "The Effectiveness of Multidimensional Counseling in the Intervention of Student Anxiety.". Addictive Disorders & Their Treatment 19 (3): 131–5. September 2020. doi:10.1097/ADT.0000000000000187.
- ↑ "Anxiety symptoms – Fear of dying.". Anxiety Centre. 27 March 2021. http://www.anxietycentre.com/anxiety-symptoms/fear-of-dying.shtml.
- ↑ Art and Artist. Norton, W. W. & Company, Inc.. 1932. ISBN 9780393305746.
- ↑ 34.0 34.1 The Courage To Be. New Haven: Yale University Press. 1952. p. 76. ISBN 978-0-300-08471-9.
- ↑ The Mortality and Morality of Nations. New York: Cambridge University Press. 2015. p. 26. ISBN 978-1-107-09707-0.
- ↑ Personality Theories: Basic Assumptions, Research, and Applications. McGraw-Hill. 1981. p. 494. ISBN 9780070290631.
- ↑ "Yerkes-Dodson: A Law for all Seasons". Theory & Psychology 4 (4): 525–547. 1994. doi:10.1177/0959354394044004.
- ↑ "Cognitive and emotional components of test anxiety: a distinction and some initial data". Psychological Reports 20 (3): 975–978. June 1967. doi:10.2466/pr0.19188.8.131.525. PMID 6042522.
- ↑ "Comorbidity of test anxiety and other anxiety disorders in children". Journal of Abnormal Child Psychology 16 (3): 275–287. June 1988. doi:10.1007/BF00913800. PMID 3403811.
- ↑ "A cognitive-behavioral model of anxiety in social phobia". Behaviour Research and Therapy 35 (8): 741–756. August 1997. doi:10.1016/S0005-7967(97)00022-3. PMID 9256517.
- ↑ 41.0 41.1 "Impact of Hypnotherapy on Examination Anxiety and Scholastic Performance among School". Delhi Psychiatry Journal 14 (2): 337–342. 2011. http://medind.nic.in/daa/t11/i2/daat11i2p337.pdf.
- ↑ "Is it possible to overcome test anxiety?". Mayo Foundation for Medical Education and Research. http://www.mayoclinic.org/diseases-conditions/generalized-anxiety-disorder/expert-answers/test-anxiety/faq-20058195.
- ↑ "Reducing Test Anxiety by Device-Guided Breathing: A Pilot Study". Frontiers in Psychology 13: 678098. 2022. doi:10.3389/fpsyg.2022.678098. PMID 35677145. PMC 9167931. https://english.afeka.ac.il/media/2235899/frintiers-in-psychology-2022.pdf.
- ↑ "Introduction: Toward an Understanding of Social Anxiety Disorder". Social Anxiety. 2010. pp. xix–xxvi. doi:10.1016/B978-0-12-375096-9.00028-6. ISBN 978-0-12-375096-9.
- ↑ Mental Health Nursing: Principles and Practice. London: Mosby. 1997. ISBN 978-0-7234-2590-8. https://archive.org/details/stuartsundeensme0000unse.
- ↑ "Social functioning in youth with anxiety disorders: association with anxiety severity and outcomes from cognitive-behavioral therapy". Child Psychiatry and Human Development 44 (1): 1–18. February 2013. doi:10.1007/s10578-012-0307-0. PMID 22581270.
- ↑ "Intergroup Anxiety". Journal of Social Issues 41 (3): 157–175. 1985. doi:10.1111/j.1540-4560.1985.tb01134.x.
- ↑ "The threat of appearing prejudiced and race-based attentional biases". Psychological Science 19 (2): 98–102. February 2008. doi:10.1111/j.1467-9280.2008.02052.x. PMID 18271854.
- ↑ "Implicit and explicit memory bias in anxiety". Journal of Abnormal Psychology 98 (3): 236–240. August 1989. doi:10.1037/0021-843x.98.3.236. PMID 2768658.
- ↑ "Effects of encoding and anxiety on implicit and explicit memory performance". Personality and Individual Differences 12 (2): 131–139. 1991. doi:10.1016/0191-8869(91)90096-t.
- ↑ "Intergroup anxiety effects on implicit racial evaluation and stereotyping". Emotion 12 (6): 1273–1280. December 2012. doi:10.1037/a0029016. PMID 22775128.
- ↑ "The antecedents and implications of interracial anxiety". Personality & Social Psychology Bulletin 29 (6): 790–801. June 2003. doi:10.1177/0146167203029006011. PMID 15189634.
- ↑ "Anxiety". December 1997. https://macses.ucsf.edu/research/psychosocial/anxiety.php.
- ↑ 54.0 54.1 "Neuroticism's prospective association with mental disorders halves after adjustment for baseline symptoms and psychiatric history, but the adjusted association hardly decays with time: a meta-analysis on 59 longitudinal/prospective studies with 443 313 participants". Psychological Medicine 46 (14): 2883–2906. October 2016. doi:10.1017/S0033291716001653. PMID 27523506. https://zenodo.org/record/895885. Retrieved 2019-07-28.
- ↑ Mental Health Nursing: From first principles to professional practice. Stanley Thornes. 1993. ISBN 978-0-412-41210-3.
- ↑ "Gulf Bend MHMR Center". https://www.gulfbend.org/poc/view_doc.php?type=doc&id=8948.
- ↑ "Premium choice anxiety". The Times (London). April 27, 2008. http://www.thesundaytimes.co.uk/sto/style/fashion/trends/article85734.ece.
- ↑ Is choice anxiety costing british 'blue chip' business? , Capgemini, August 16, 2004
- ↑ 59.0 59.1 "Anxiety and decision-making". Biological Psychiatry 72 (2): 113–118. July 2012. doi:10.1016/j.biopsych.2011.12.027. PMID 22325982.
- ↑ "What are the five major types of anxiety disorders?". U.S. Department of Health & Human Services. June 8, 2015. https://www.hhs.gov/answers/mental-health-and-substance-abuse/what-are-the-five-major-types-of-anxiety-disorders/index.html.
- ↑ "Panic Disorder & Panic Attacks". The Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/4451-panic-disorder.
- ↑ "Anorexia & Depression: When Eating Disorders Co-Exist with Depression" (in en-US). https://www.psycom.net/anorexia-and-depression/.
- ↑ "Genetics of generalized anxiety disorder and related traits". Dialogues in Clinical Neuroscience 19 (2): 159–168. June 2017. doi:10.31887/DCNS.2017.19.2/kdomschke. PMID 28867940.
- ↑ "Anxiety". https://medlineplus.gov/anxiety.html.
- ↑ "Assessing and responding to anxiety and panic in the Emergency Department". Australasian Emergency Care 22 (4): 216–220. December 2019. doi:10.1016/j.auec.2019.08.002. PMID 31530499.
- ↑ 66.0 66.1 "Anxiety Disorders". March 2016. http://www.nimh.nih.gov/health/topics/anxiety-disorders/index.shtml#pub2.
- ↑ 67.0 67.1 67.2 67.3 "Anxiety". Lancet 388 (10063): 3048–3059. December 2016. doi:10.1016/S0140-6736(16)30381-6. PMID 27349358.
- ↑ "Lifetime prevalence and age-of-onset distributions of mental disorders in the World Health Organization's World Mental Health Survey Initiative". World Psychiatry 6 (3): 168–176. October 2007. PMID 18188442.
- ↑ Anxious: the modern mind in the age of anxiety. London. 2015. ISBN 978-1-78074-767-5. OCLC 920462582.
- ↑ "Correction to: Psychiatric genetics and the structure of psychopathology". Molecular Psychiatry 24 (3): 471. March 2019. doi:10.1038/s41380-018-0026-4. PMID 29540840.
- ↑ "Major Depression and Generalised Anxiety Disorder". FOCUS 2 (3): 416–425. July 2004. doi:10.1176/foc.2.3.416.
- ↑ "Should OCD be classified as an anxiety disorder in DSM-V?". Depression and Anxiety 27 (6): 495–506. June 2010. doi:10.1002/da.20699. PMID 20533366.
- ↑ Omoregie, Jesse; Carson, Jerome (1 January 2022). "Reductive mechanisms for unwanted intrusive thoughts: exploring affectivity in clinical and non-clinical samples". Mental Health and Social Inclusion ahead-of-print (ahead-of-print): 51–65. doi:10.1108/MHSI-06-2022-0040.
- ↑ Chronicle of the Roman Emperors. Thames & Hudson. 1995. pp. 168–9. ISBN 978-5-00-050775-9.
- ↑ "Robert Plomin, John C. DeFries, Valerie S. Knopik, Jenae M. Neiderhiser, Behavioral Genetics (6th Edition)". Behavior Genetics 43 (4): 360–361. June 16, 2013. doi:10.1007/s10519-013-9598-6.
- ↑ "Genetics of anxiety disorders: the complex road from DSM to DNA". Depression and Anxiety 26 (11): 965–975. November 2009. doi:10.1002/da.20623. PMID 19885930.
- ↑ "Anxiety disorders". Nature Reviews. Disease Primers 3 (1): 17024. May 2017. doi:10.1038/nrdp.2017.24. PMID 28470168.
- ↑ "From normal fear to pathological anxiety". Psychological Review 105 (2): 325–350. April 1998. doi:10.1037/0033-295X.105.2.325. PMID 9577241.
- ↑ Nolen-Hoeksema, S. (2013). (Ab)normal Psychology (6th edition). McGraw Hill.
- ↑ Compassion and Healing in Medicine and Society: On the Nature and Use of Attachment Solutions to Separation Challenges. Johns Hopkins University Press. 2011. p. 172. ISBN 978-1-4214-0220-8.
- ↑ How the Brain Talks to Itself: A Clinical Primer of Psychotherapeutic Neuroscience. Haworth. 1998. p. 284. ISBN 978-0-7890-0408-6.
- ↑ 82.0 82.1 "Neural correlates of reward processing in adolescents with a history of inhibited temperament". Psychological Science 20 (8): 1009–1018. August 2009. doi:10.1111/j.1467-9280.2009.02401.x. PMID 19594857.
- ↑ 83.0 83.1 "Kynurenine pathway metabolism and the microbiota-gut-brain axis". Neuropharmacology 112 (Pt B): 399–412. January 2017. doi:10.1016/j.neuropharm.2016.07.002. PMID 27392632.
- ↑ 84.0 84.1 "Collective unconscious: how gut microbes shape human behavior". Journal of Psychiatric Research 63: 1–9. April 2015. doi:10.1016/j.jpsychires.2015.02.021. PMID 25772005.
- ↑ 85.0 85.1 85.2 "Do bacteria shape our development? Crosstalk between intestinal microbiota and HPA axis". Neuroscience and Biobehavioral Reviews 83: 458–471. December 2017. doi:10.1016/j.neubiorev.2017.09.016. PMID 28918360.
- ↑ 86.0 86.1 "Ingestion of Lactobacillus strain regulates emotional behavior and central GABA receptor expression in a mouse via the vagus nerve". Proceedings of the National Academy of Sciences of the United States of America 108 (38): 16050–16055. September 2011. doi:10.1073/pnas.1102999108. PMID 21876150.
- ↑ "Targeting the Microbiota-Gut-Brain Axis: Prebiotics Have Anxiolytic and Antidepressant-like Effects and Reverse the Impact of Chronic Stress in Mice". Biological Psychiatry 82 (7): 472–487. October 2017. doi:10.1016/j.biopsych.2016.12.031. PMID 28242013.
- ↑ "Impact of consuming a milk drink containing a probiotic on mood and cognition". European Journal of Clinical Nutrition 61 (3): 355–361. March 2007. doi:10.1038/sj.ejcn.1602546. PMID 17151594.
- ↑ "Prebiotic intake reduces the waking cortisol response and alters emotional bias in healthy volunteers". Psychopharmacology 232 (10): 1793–1801. May 2015. doi:10.1007/s00213-014-3810-0. PMID 25449699.
- ↑ "The Genetic Links to Anxiety and Depression (GLAD) Study: Online recruitment into the largest recontactable study of depression and anxiety". Behaviour Research and Therapy 123: 103503. December 2019. doi:10.1016/j.brat.2019.103503. PMID 31715324.
- ↑ Gottschalk, Michael G.; Domschke, Katharina (June 2017). "Genetics of generalized anxiety disorder and related traits". Dialogues in Clinical Neuroscience 19 (2): 159–168. doi:10.31887/DCNS.2017.19.2/kdomschke. ISSN 1294-8322. PMID 28867940.
- ↑ "The phenotypic and genetic structure of depression and anxiety disorder symptoms in childhood, adolescence, and young adulthood". JAMA Psychiatry 71 (8): 905–916. August 2014. doi:10.1001/jamapsychiatry.2014.655. PMID 24920372.
- ↑ "Stability in symptoms of anxiety and depression as a function of genotype and environment: a longitudinal twin study from ages 3 to 63 years". Psychological Medicine 45 (5): 1039–1049. April 2015. doi:10.1017/S003329171400213X. PMID 25187475.
- ↑ "The Intergenerational Transmission of Anxiety: A Children-of-Twins Study". The American Journal of Psychiatry 172 (7): 630–637. July 2015. doi:10.1176/appi.ajp.2015.14070818. PMID 25906669.
- ↑ 95.0 95.1 "Candidate genes in panic disorder: meta-analyses of 23 common variants in major anxiogenic pathways". Molecular Psychiatry 21 (5): 665–679. May 2016. doi:10.1038/mp.2015.138. PMID 26390831.
- ↑ 96.0 96.1 96.2 "A major role for common genetic variation in anxiety disorders". Molecular Psychiatry 25 (12): 3292–3303. December 2020. doi:10.1038/s41380-019-0559-1. PMID 31748690.
- ↑ "Meta-analysis of genome-wide association studies of anxiety disorders". Molecular Psychiatry 21 (10): 1391–1399. October 2016. doi:10.1016/j.euroneuro.2016.09.604. PMID 26754954.
- ↑ "GLRB allelic variation associated with agoraphobic cognitions, increased startle response and fear network activation: a potential neurogenetic pathway to panic disorder". Molecular Psychiatry 22 (10): 1431–1439. October 2017. doi:10.1016/j.euroneuro.2016.09.607. PMID 28167838.
- ↑ "Treating Dyspnea: Is Oxygen Therapy the Best Option for All Patients?". The Medical Clinics of North America 100 (5): 1123–1130. September 2016. doi:10.1016/j.mcna.2016.04.018. PMID 27542431.
- ↑ "Management of chronic obstructive pulmonary disease beyond the lungs". The Lancet. Respiratory Medicine 4 (11): 911–924. November 2016. doi:10.1016/S2213-2600(16)00097-7. PMID 27264777.
- ↑ "Strategies to improve anxiety and depression in patients with COPD: a mental health perspective". Neuropsychiatric Disease and Treatment 12: 297–328. 2016. doi:10.2147/NDT.S79354. PMID 26929625.
- ↑ "Personality traits and emotional patterns in irritable bowel syndrome". World Journal of Gastroenterology 22 (28): 6402–6415. July 2016. doi:10.3748/wjg.v22.i28.6402. PMID 27605876.
- ↑ "How to Diagnose and Treat Functional Chest Pain". Current Treatment Options in Gastroenterology 14 (4): 429–443. December 2016. doi:10.1007/s11938-016-0106-y. PMID 27709331.
- ↑ "Psychological and Interpersonal Dimensions of Sexual Function and Dysfunction". The Journal of Sexual Medicine 13 (4): 538–571. April 2016. doi:10.1016/j.jsxm.2016.01.019. PMID 27045257. https://eprints.soton.ac.uk/390453/1/Final%2520-%2520JSM%2520chapter%2520on%2520psych%2520factors%2520-%2520part%25201%2520-%2520ACCEPTED.doc. Retrieved 2019-12-07.
- ↑ "The pathophysiology of acquired premature ejaculation". Translational Andrology and Urology 5 (4): 434–449. August 2016. doi:10.21037/tau.2016.07.06. PMID 27652216.
- ↑ "The psychosocial impact of acne, vitiligo, and psoriasis: a review". Clinical, Cosmetic and Investigational Dermatology 9: 383–392. 2016. doi:10.2147/CCID.S76088. PMID 27799808.
- ↑ "Physical and Mental Health of Children with Developmental Coordination Disorder". Frontiers in Public Health 4: 224. 2016. doi:10.3389/fpubh.2016.00224. PMID 27822464.
- ↑ "Mental health outcomes during colorectal cancer survivorship: a review of the literature". Psycho-Oncology 25 (11): 1261–1270. November 2016. doi:10.1002/pon.3954. PMID 26315692.
- ↑ 109.0 109.1 109.2 109.3 109.4 109.5 109.6 109.7 109.8 "Psychiatric emergencies (part III): psychiatric symptoms resulting from organic diseases". European Review for Medical and Pharmacological Sciences 17 (Suppl 1): 86–99. February 2013. PMID 23436670. http://www.europeanreview.org/article/3087. Retrieved 2018-10-26.
- ↑ "Cognitive function in untreated hypothyroidism and hyperthyroidism". Current Opinion in Endocrinology, Diabetes and Obesity 15 (5): 429–433. October 2008. doi:10.1097/MED.0b013e32830eb84c. PMID 18769215.
- ↑ "Symptoms of depression and anxiety in youth with type 1 diabetes: A systematic review and meta-analysis". Psychoneuroendocrinology 70: 70–84. August 2016. doi:10.1016/j.psyneuen.2016.04.019. PMID 27179232.
- ↑ "Prevalence of anxiety in adults with diabetes: a systematic review". Journal of Psychosomatic Research 53 (6): 1053–1060. December 2002. doi:10.1016/S0022-3999(02)00417-8. PMID 12479986.
- ↑ "Psychological morbidity of celiac disease: A review of the literature". United European Gastroenterology Journal 3 (2): 136–145. April 2015. doi:10.1177/2050640614560786. PMID 25922673.
- ↑ "Systematic review: noncoeliac gluten sensitivity". Alimentary Pharmacology & Therapeutics 41 (9): 807–820. May 2015. doi:10.1111/apt.13155. PMID 25753138.
- ↑ "Depression and anxiety in patients with Inflammatory Bowel Disease: A systematic review". Journal of Psychosomatic Research 87: 70–80. August 2016. doi:10.1016/j.jpsychores.2016.06.001. PMID 27411754.
- ↑ "The prevalence of neuropsychiatric symptoms in Alzheimer's disease: Systematic review and meta-analysis". Journal of Affective Disorders 190: 264–271. January 2016. doi:10.1016/j.jad.2015.09.069. PMID 26540080.
- ↑ "Depression, anxiety, and apathy in Parkinson's disease: insights from neuroimaging studies". European Journal of Neurology 23 (6): 1001–1019. June 2016. doi:10.1111/ene.13002. PMID 27141858.
- ↑ "The incidence and prevalence of psychiatric disorders in multiple sclerosis: a systematic review". Multiple Sclerosis 21 (3): 305–317. March 2015. doi:10.1177/1352458514564487. PMID 25583845.
- ↑ Abuse, National Institute on Drug (2012-08-03). "Prescription Drug Facts, Effects, Teen Use" (in en). https://teens.drugabuse.gov/drug-facts/prescription-drugs.
- ↑ Brady, Kathleen T.; Haynes, Louise F.; Hartwell, Karen J.; Killeen, Therese K. (2013). "Substance Use Disorders and Anxiety: A Treatment Challenge for Social Workers". Social Work in Public Health 28 (3–4): 407–423. doi:10.1080/19371918.2013.774675. ISSN 1937-1918. PMID 23731428.
- ↑ Turner, Sarah; Mota, Natalie; Bolton, James; Sareen, Jitender (2018). "Self‐medication with alcohol or drugs for mood and anxiety disorders: A narrative review of the epidemiological literature". Depression and Anxiety 35 (9): 851–860. doi:10.1002/da.22771. ISSN 1091-4269. PMID 29999576.
- ↑ "CDC – The Emergency Response Safety and Health Database: Systemic Agent: BENZENE – NIOSH". https://www.cdc.gov/niosh/ershdb/emergencyresponsecard_29750032.html.
- ↑ "Anxiety and feedback negativity". Psychophysiology 47 (5): 961–967. September 2010. doi:10.1111/j.1469-8986.2010.00997.x. PMID 20374540.
- ↑ Watkins, Edward R. (2008). "Constructive and Unconstructive Repetitive Thought". Psychological Bulletin 134 (2): 163–206. doi:10.1037/0033-2909.134.2.163. ISSN 0033-2909. PMID 18298268.
- ↑ "Prevention of anxiety disorders". International Review of Psychiatry 19 (6): 647–654. December 2007. doi:10.1080/09540260701797837. PMID 18092242.
- ↑ "Negative life events and symptoms of depression and anxiety: stress causation and/or stress generation". Anxiety, Stress, and Coping 28 (4): 357–371. 2015. doi:10.1080/10615806.2015.1005078. PMID 25572915.
- ↑ "The bright side of being blue: depression as an adaptation for analyzing complex problems". Psychological Review 116 (3): 620–654. July 2009. doi:10.1037/a0016242. PMID 19618990.
- ↑ Principles of Evolutionary Medicine. Oxford University Press. 2009. pp. 249. ISBN 978-0199236398.
- ↑ "Emotion, olfaction, and the human amygdala: amygdala activation during aversive olfactory stimulation". Proceedings of the National Academy of Sciences of the United States of America 94 (8): 4119–4124. April 1997. doi:10.1073/pnas.94.8.4119. PMID 9108115. Bibcode: 1997PNAS...94.4119Z.
- ↑ "Neural correlates of tasting concentrated quinine and sugar solutions". Journal of Neurophysiology 87 (2): 1068–1075. February 2002. doi:10.1152/jn.00358.2001. PMID 11826070.
- ↑ "Table E-4 Risk Factors for Anxiety". Prevention of Mental Disorders, Substance Abuse, and Problem Behaviors: A Developmental Perspective. National Academies Press. 2009. p. 530. doi:10.17226/12480. ISBN 978-0-309-12674-8. http://books.nap.edu/openbook.php?record_id=12480&page=530. Retrieved 2014-04-19.
- ↑ "A Systematic Review and Meta-analysis of Depression, Anxiety, and Sleep Disorders in US Adults with Food Insecurity". Journal of General Internal Medicine 34 (12): 2874–2882. December 2019. doi:10.1007/s11606-019-05202-4. PMID 31385212.
- ↑ "Anticipatory anxiety patterns for male and female public speakers". Communication Education 49 (2): 187–195. 2000. doi:10.1080/03634520009379205.
- ↑ "Psychiatric emergencies (part II): psychiatric disorders coexisting with organic diseases". European Review for Medical and Pharmacological Sciences 17 (Suppl 1): 65–85. February 2013. PMID 23436669. http://www.europeanreview.org/article/3085. Retrieved 2018-10-26.
- ↑ "CLINICAL PRACTICE. Generalized Anxiety Disorder". The New England Journal of Medicine 373 (21): 2059–2068. November 2015. doi:10.1056/nejmcp1502514. PMID 26580998.
- ↑ "Psychological treatment of generalized anxiety disorder: a meta-analysis". Clinical Psychology Review 34 (2): 130–140. March 2014. doi:10.1016/j.cpr.2014.01.002. PMID 24487344.
- ↑ "Cognitive behavioral therapy in anxiety disorders: current state of the evidence". Dialogues in Clinical Neuroscience 13 (4): 413–421. 2011. doi:10.31887/DCNS.2011.13.4/cotte. PMID 22275847.
- ↑ "Psychological therapies for panic disorder with or without agoraphobia in adults: a network meta-analysis". The Cochrane Database of Systematic Reviews 2016 (4): CD011004. April 2016. doi:10.1002/14651858.CD011004.pub2. PMID 27071857.
- ↑ 139.0 139.1 "Therapist-supported Internet cognitive behavioural therapy for anxiety disorders in adults". The Cochrane Database of Systematic Reviews 2016 (3): CD011565. March 2016. doi:10.1002/14651858.cd011565.pub2. PMID 26968204.
- ↑ "Smartphones for smarter delivery of mental health programs: a systematic review". Journal of Medical Internet Research 15 (11): e247. November 2013. doi:10.2196/jmir.2791. PMID 24240579.
- ↑ Singh, Kavita; Severn, Melissa (2018). "e-Therapy Interventions for the Treatment of Anxiety: Clinical Evidence". Canadian Agency for Drugs and Technologies in Health. https://pubmed.ncbi.nlm.nih.gov/30329251/.
- ↑ "Treatment of anxiety disorders". Dialogues in Clinical Neuroscience 19 (2): 93–107. June 2017. doi:10.31887/DCNS.2017.19.2/bbandelow. PMID 28867934.
- ↑ Chand, Suma P.; Marwaha, Raman (2022). Anxiety. StatPearls Publishing. PMID 29262212. https://pubmed.ncbi.nlm.nih.gov/29262212/. Retrieved 2022-12-28.
- ↑ "Effectiveness of Psychological and/or Educational Interventions in the Prevention of Anxiety: A Systematic Review, Meta-analysis, and Meta-regression". JAMA Psychiatry 74 (10): 1021–1029. October 2017. doi:10.1001/jamapsychiatry.2017.2509. PMID 28877316.
- ↑ "Preventing anxiety with psychological and educational interventions". February 19, 2018. https://www.nationalelfservice.net/mental-health/anxiety/preventing-anxiety-with-psychological-and-educational-interventions/.
- ↑ "Targeting anxiety sensitivity as a prevention strategy". The Clinician's Guide to Anxiety Sensitivity Treatment and Assessment. 2019. pp. 145–178. doi:10.1016/B978-0-12-813495-5.00008-5. ISBN 978-0-12-813495-5.
- ↑ Anxiety Disorders at eMedicine
- ↑ "The amygdala". Current Biology 17 (20): R868–R874. October 2007. doi:10.1016/j.cub.2007.08.005. PMID 17956742.
- ↑ "Acute corticosterone treatment is sufficient to induce anxiety and amygdaloid dendritic hypertrophy". Proceedings of the National Academy of Sciences of the United States of America 105 (14): 5573–5578. April 2008. doi:10.1073/pnas.0705615105. PMID 18391224. Bibcode: 2008PNAS..105.5573M.
- ↑ "SK2 potassium channel overexpression in basolateral amygdala reduces anxiety, stress-induced corticosterone secretion and dendritic arborization". Molecular Psychiatry 14 (9): 847–55, 827. September 2009. doi:10.1038/mp.2009.9. PMID 19204724.
|Library resources about |
Original source: https://en.wikipedia.org/wiki/Anxiety. Read more