Bipolar disorder, formerly known as manic depression, is a psychological disorder characterized by mood swings.

Bipolar disorder is a mental health condition that causes abnormal changes in energy, mood, activity levels, and the ability to perform day-to-day tasks.

Major symptoms may include emotional highness (mania or hypomania) and elevation (depression). They can be of varying intensity with periods of stability and stillness.

There are 4 basic types of bipolar disorder; bipolar I disorder, bipolar II disorder, cyclothymic disorder and bipolar disorder due to a medical health problem or other substance abuse.