Depression

A less severe type of depression, dysthymia, involves long-term, chronic symptoms that do not disable, but keep one from functioning well or from feeling good. Many people with dysthymia also experience major depressive episodes at some time in their lives.

Another type of depression is bipolar disorder, also called manic-depressive illness. Not nearly as prevalent as other forms of depressive disorders, bipolar disorder is characterized by cycling mood changes: severe highs (mania) and lows (depression). Sometimes the mood switches are dramatic and rapid, but most often they are gradual. When in the depressed cycle, an individual can have any or all of the symptoms of a depressive disorder. When in the manic cycle, the individual may be overactive, over-talkative, and have a great deal of energy. Mania often affects thinking, judgment, and social behavior in ways that cause serious problems and embarrassment. For example, the individual in a manic phase may feel elated, full of grand schemes that might range from unwise business decisions to romantic sprees. Mania, left untreated, may worsen to a psychotic state.

Symptoms

Depression Persistent sad, anxious, or "empty" mood Feelings of hopelessness, pessimism Feelings of guilt, worthlessness, helplessness Loss of interest or pleasure in hobbies and activities that were once enjoyed, including sex Decreased energy, fatigue, being "slowed down" Difficulty concentrating, remembering, making decisions Insomnia, early-morning awakening, or oversleeping Appetite and/or weight loss or overeating and weight gain

Thoughts of death or suicide; suicide attempts Persistent physical symptoms that do not respond to treatment, such as headaches, digestive disorders, and chronic pain Mania Abnormal or excessive elation Unusual irritability Decreased need for sleep Grandiose notions Increased talking Racing thoughts Increased sexual desire Markedly increased energy Poor judgment Inappropriate social behavior Restlessness, irritability