Research psychologists study the cause of manic depression.

Bipolar - A Narration of Manic Depression was created in 2011.

Not in the way that you are asking. Depression is one illness; manic depression is a separate illness. However, it is possible that you are actually manic depressive or bipolar instead of just being unipolar depressive. Sometimes the manic phase does not show up at the same time as the depression. Teenagers and young adults often have depression first, before the first manic episode.

Manic depression, also known as bipolar, is treated with a combination of medication and psychotherapy.

Manic depression, also known as bipolar, is viewed as treatable and manageable, but not curable.