Women are more likely than men to have rapid cycling.

Women are also at higher risk for rapid cycling, which means having four or more mood episodes in one year.

Rapid cycling tends to develop later in the course of illness.

When mood swings happen frequently, the process is called rapid cycling.

About 10% to 20% of people with bipolar disorder have rapid cycling.

Rapid cycling increases the risk for severe depression and suicide.

Evidence from previous studies shows that rapid cycling is linked to use of antidepressants.

Rapid cycling is a pattern of symptoms in bipolar disorder.

Rapid cycling tends to happen later in the course of the illness and is more common in women than men.

For some, however, there is rapid cycling between the manic and the depressive phases.