Did you know that bipolar disorder often develops during a person's late teens or early adult years?
Bipolar disorder causes dramatic mood swings—from feeling overly “high” and/or irritable to sad and hopeless, and then back again, often with periods of normal mood in between. Severe changes in energy and behavior go along with these episodes. The periods of highs and lows are called episodes of mania and depression. It is often not recognized as an illness, and people may suffer for years before it is properly diagnosed and treated.
At least half of all cases start before age 25. Some people have their first bipolar disorder symptoms during childhood, while others may develop symptoms late in life.