People who live with bipolar disorder experience periods of great excitement, overactivity, delusions, and euphoria (known as mania) and other periods of feeling sad and hopeless (known as depression). There are actually at least three types of bipolar disorders (Bipolar I, Bipolar II, and Cyclothymic disorder) but this particular trait would fall under the diagnosis of Bipolar I.

Bipolar is, according to the DSM-5, a group of brain disorders that cause extreme fluctuation in a person?s mood, energy, and ability to function.