Bipolar Disorder

One question that comes up over and over again -- a question asked in email, in chats and in the forum -- a question we have all asked at one time or another, is What causes bipolar disorder? I once heard a member of a listserv suggest that it is caused by a shortage of Lithium in the brain. One forum participant said he vaguely remembered reading an article that tried to link dog bites in childhood with bipolar disorder! In short, there is a great deal of misinformation out there.
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