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Causes

While there are many biological factors associated with mania and depression none of them has been proven to be a cause or to be diagnostic of bipolar disorder


At least 50% of people with bipolar disorder have a parent with a mood disorder, most often major depressive disorder. A person has a 30% chance of inheriting a mood disorder if one parent has bipolar disorder and a 60% chance if both parents have it. Research has found an even greater risk among twins, especially ident...Read the full article