Generalized Anxiety Disorder (GAD) is defined by persistent and excessive worry about a variety of things. People suffering from GAD may be overly concerned about money, health, family, work, or other issues. Individuals suffering from GAD have a difficult time controlling their anxiety. They may be overly concerned about actual events or may expect the worst even when there is no reason to be concerned. GAD is diagnosed when a person has three or more symptoms and finds it difficult to control worry on more days than not for at least six months. This distinguishes GAD from worry, which may be specific to a specific stressor or for a shorter period of time. Causes The exact cause of GAD is unknown, but it is likely that a combination of several factors is involved. According to research, these may include: Your parents' genes A history of stressful or traumatic experiences, such as domestic violence, child abuse, or bullying Painfu...