Manic-depressive illness, also referred to as bipolar disorder or manic depression, is a chronic mood disorder and mental health condition that causes abrupt changes in mood, energy levels, thought processes, and behavior.
Manic depression, formerly known as bipolar disorder, is a mental health condition that results in sharp mood swings, including emotional highs (mania or hypomania), and lows. When you experience depression, you might feel down or hopeless and stop enjoying or being interested in most activities.
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