Learn all about the uterus - its anatomy, what it is and its function in the female reproductive system.
Anxiety Disorders: What You Need to Know. 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.
Anxiety disorders are those that are characterized by excessive and abnormal fear, worry, anxiety and related behavioral disturbances. Fear involves an emotional response to a threat, whether that threat is real or perceived. Anxiety involves the anticipation that a future threat may arise.