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Manic depression
Bipolar disorder can be severe and long-term, or it can be mild with infrequent episodes. Patients with the disease may experience symptoms in very different ways. A typical bipolar disorder patient averages 8 - 10 manic or depressive episodes over a lifetime. However, some people experience more and some fewer episodes.
Medical evidence has shown that patients with bipolar disorder have higher death rates from suicide, heart problems, and death from all causes than those in the general population. Patients who get treatment, however, experience great improvement in survival rates, including deaths from suicide.
Typical Bipolar Cycles. In most cases of bipolar disorder, the depressive phases far outnumber manic phases, and the cycles of mania and depression are neither regular nor predictable. Many patients experience mixed mania, or a mixed state, in which both mania and depression coexist for at least 7 days.
Rapid Cycling. About 15% of patients with the disorder have a temporary, complicated phase known as rapid cycling. With this phase the manic and depressive episodes alternate at least four times a year and, in severe cases, can even progress to several cycles a day. Rapid cycling tends to occur more often in women and in those with bipolar II. Typically, rapid cycling starts in the depressive phase, and frequent and severe episodes of depression may be the hallmark of this event. This phase is difficult to treat, particularly since antidepressants can trigger the switch to mania and set up a cyclical pattern.
Differences Between Children and Adults. Research suggests that symptoms of bipolar disorder in children and adolescents differ from those of adults. While adults with bipolar disorder usually have distinct and persistent periods of mania and depression, children with bipolar disorder fluctuate rapidly in their mood and behavior. Mania in children is characterized by irritability and belligerence whereas adults tend to experience euphoria. Children with bipolar depression are frequently angry and restless, and may have additional mood and behavioral disorders such as anxiety, attention deficit hyperactivity disorder, conduct disorder, and substance abuse problems.
It is not yet clear how frequently childhood bipolar disorder persists into adulthood or if treating childhood bipolar disorder can help prevent future illness.
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