Mania and hypomania are distinct periods of abnormally and constantly elevated, expansive or irritable moods.
Manic episodes (mania] last at least One week.
Hypomanic episodes [hypomania) are a milder form of mania that has similar but less severe symptoms lasting at least four days. During this period of mood disturbance, three (or more] of the following symptoms may be present to a significant degree:
Major depressive episode (depression) is a period during which there is either a depressed mood or loss of interest or pleasure in nearly all activities. The following symptoms may last for at least two weeks.
Severe depression can also include hallucinations or delusions.
Mixed episodes - in a mixed episode the symptoms of both a manic and major depressive episode are experienced nearly every day for at least one week. This may be one of the most disabling episodes, as well as the greatest risk for suicide.
How bipolar disorder affects your moods The shaded region represents the usual range of 'ups' and 'downs' we experience. People with bipolar disorder experience extreme ups and downs that can become mania or depression.