About 12% of people are affected by an anxiety disorder in a given year and between 5-30% are affected at some point in their life.[49][50] They occur about twice as often in women than they do in men, and generally begin before the age of 25.[10][49] 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.[49]

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, 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.[90][medical citation needed] Research has demonstrated the ways in which facial prominence in photographic images differs between men and women. More specifically, in official online photographs of politicians around the world, women's faces are less prominent than men's. The difference in these images actually tended to be greater in cultures with greater institutional gender equality.[91]

Panic disorder is a condition that causes many disturbing mental, physical, and emotional symptoms. Despite these intense symptoms, panic disorder, panic attacks, and agoraphobia are all treatable conditions. Given that agoraphobia typically develops within the first year a person begins to have abrupt panic attacks, it is important to seek out help early on. However, treatment can provide much improvement, even for those with long-term symptoms.
People often fear the worst when they're having an anxiety attack. Most of the time, there’s no underlying physical problem, such as a real heart attack. But you should get the medical all clear if you have repeat anxiety attacks, just to be sure you don’t need additional treatment. Then find a cognitive behavioral therapist with experience treating anxiety to help you through.
Palpitations are uncomfortable sensations of the heart beating hard, rapidly, or irregularly. Some types of palpitations are benign, while others are more serious. Palpitations are diagnosed by taking the patient history and by performing an EKG or heart monitoring along with blood tests. An electrophysiology study may also be performed. Treatment of palpitations may include lifestyle changes, medication, ablation, or implantation of a pacemaker. The prognosis if palpitations depends on the underlying cause.
Cognitive Behavioral Therapy (CBT) is an example of one type of psychotherapy that can help people with anxiety disorders. It teaches people different ways of thinking, behaving, and reacting to anxiety-producing and fearful objects and situations. CBT can also help people learn and practice social skills, which is vital for treating social anxiety disorder.