Bipolar disorder is a mental health condition ... it is referred to as rapid cycling. Learn the key facts about this complex condition by clicking through the gallery. You may also like: ...

Rapid cycling may comprise 13% to 20% of the incidence of bipolar disorders--with higher percentages reported by tertiary referral centers. Rapid cycling can occur in both bipolar I and II disorders.

It is clear that much diversity exists within these major subtypes, such that designations like "rapid cycling" and "bipolar III" are being put forward and probed for clinical relevance.

His irritability and rapid cycling moods led his parents and psychiatrist to recognize that he has a form of bipolar illness, called bipolar 2 disorder. It is characterized by intense irritability ...