What are the differences between bipolar disorder and manic depression?

The decade's DSM: About a century ago it all began and much is the same, but for boundary lines. Few use the M-D term now but otherwise the differences are hard to lock in. Some BPs only show depression, but varying sorts of elevated periods can be there and they can be just very active or irritably violent. Extremely intense episodes come close to, or are, a psychosis. Good treatment (Therapy+) really helps.

Interchangable: The terms are interchangeable, with bipolar disorder being the more modern, clinical term. Bipolar disorder refers to extreme swings of mood from depression to mania and back again.