Psychological disorders marked by major changes in mood or emotion.
Mood disorders where a person switches between extremes of mania and possibly depression.
A person diagnosed that has had at least one manic episode, in the absence of anything that might cause it, like medication or drugs.
A form of bipolar disorder that includes the appearance of both depression and hypomania.
A form of bipolar, where a person experiences longer periods (at least 2 months) of hypomania and depression that are generally, but not always, milder.