It makes you study harder for that exam, and keeps you on your toes when you're making a speech. In general, it helps you cope. But if you have an anxiety disorder, this normally helpful emotion can do just the opposite it can keep you from coping and can disrupt your daily life. They are illnesses, often related to the biological makeup and life experiences of the individual, and they frequently run in families. There are several types of anxiety disorders, each with its own distinct features.
Anxiety disorders are the most common of all the mental disorders.
NIMH also conducts educational outreach activities about anxiety disorders and other mental illnesses. Detailed information is available throughout the site. Most people experience feelings of anxiety before an important event such as a big exam, business presentation or first date. Anxiety disorders, however, are illnesses that cause people to feel frightened, distressed and uneasy for no apparent reason. Left untreated, these disorders can dramatically reduce productivity and significantly diminish an individual's quality of life.