The condition of steady, pervasive anxiety is called Generalized Anxiety Disorder. Yet there are numerous anxiety-related disorders. One is panic disorder—severe episodes of anxiety that occur in response to specific triggers. Another is obsessive-compulsive disorder, marked by persistent intrusive thoughts or compulsions to carry out specific behaviors, such as hand-washing. Post-traumatic stress disorder may develop after exposure to a terrifying event in which severe physical harm occurred or was threatened. Anxiety so frequently co-occurs with depression that the two are thought to be twin faces of one disorder. Like depression, anxiety strikes twice as many adult females as males.
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.
There are two very important guidelines to think about, aside from symptoms. These are duration of symptoms and level of impairment. Anxiety is a normal reaction to stressful situations, and even high levels of anxiety can be healthy and beneficial at times. Disorders are only present when anxiety symptoms last for several weeks to months and significantly interfere with every day function or cause long-lasting distress.
Many neurotransmitters are affected when the body is under the increased stress and anxiety that accompany a panic attack. Some include serotonin, GABA (gamma-aminobutyric acid), dopamine, norepinephrine and glutamate. More research into how these neurotransmitters interact with one another during a panic attack is needed to make any solid conclusions, however.
The disorder in younger children is less likely to have the symptoms that involve ways of thinking (cognitive symptoms). For example, panic attacks in children may result in the child's grades declining, decreased school attendance, and avoiding that and other separations from their parents. Both children and teens with panic disorder are further at risk for developing substance abuse and depression as well as suicidal thoughts, plans, and/or actions.
Clinical trials are research studies that look at new ways to prevent, detect, or treat diseases and conditions, including anxiety disorders. During clinical trials, treatments might be new drugs or new combinations of drugs, new surgical procedures or devices, new psychotherapies, or new ways to use existing treatments. The goal of clinical trials is to determine if a new test or treatment works and is safe.
We all experience anxiety. For example, speaking in front of a group can make us anxious, but that anxiety also motivates us to prepare and practice. Driving in heavy traffic is another common source of anxiety, but it helps keep us alert and cautious to avoid accidents. However, when feelings of intense fear and distress become overwhelming and prevent us from doing everyday activities, an anxiety disorder may be the cause.
Cushing's syndrome, sometimes referred to as hypercortisolism, is a hormonal disorder caused by prolonged exposure to high levels of the hormone cortisol. Symptoms may include obesity, thinning arms and legs, a rounded face, and increased fat around the neck. Some causes of Cushing's syndrome is from taking glucocorticoid hormones such as prednisone for inflammatory diseases. Treatment for Cushing's syndrome depends on the cause.
Once an individual has had a panic attack, for example, while driving, shopping in a crowded store, or riding in an elevator, he or she may develop irrational fears, called phobias, about these situations and begin to avoid them. Eventually, the avoidance and level of nervousness about the possibility of having another attack may reach the point at which the mere idea of engaging in the activities that preceded the first panic attack triggers future panic attacks, resulting in the person with panic disorder potentially being unable to drive or even step out of the house (agoraphobia). Thus, there are two types of panic disorder, panic disorder with or without agoraphobia. Like other mental health conditions, panic disorder can have a serious impact on a person's daily life unless the individual receives effective treatment.