The Facts
Cyclothymic disorder is a type of mood disorder, where people experience numerous periods of mood "highs" and "lows" that are unrelated to life circumstances. The mood instability - mild elation or mild depression - is related to bipolar disorder (formerly known as manic depression), and is in fact considered to be a milder form of bipolar disorder. Though less severe, cyclothymia can have great impact on a person's life, with unexpected and extreme mood changes disrupting the ability to function normally.
Both men and women are equally likely to suffer from cyclothymia, affecting up to 1% of the population. Cyclothymic disorder generally starts appearing during young adulthood, though onset may also occur at a later age.