Bipolar disorder (formerly known as manic-depressive illness or manic depression) is a lifelong mood disorder and mental health condition that causes intense shifts in mood, energy levels, thinking patterns and behavior. These shifts can last for hours, days, weeks or months and interrupt your ability to carry out day-to-day tasks. Advertisement. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.