Bipolar disorder was formerly called manic depression or manic depressive disorder. These mood swings can go from mania (an emotional high) or hypomania (slightly less extreme than mania), to depression (an emotional low). When a bipolar patient swings to depression, he may feel sad, hopeless, worthless and despondent. These mood swings will affect his sleep, activity level, judgement, behaviour, concentration and ability to think clearly. These mood swings may occur multiple times a year, or sometimes, rarely.

Source: The Star August 12, 2020 23:26 UTC