Kristy McNichol

Kristy McNichol

Jan 7, 2012 Read more: NNDB

Contrary to the rumors, Kristy McNichol is not crazy, and not a drug addict. She has bipolar affective disorder, also known as manic-depression. It's a physical disorder that is exacerbated by stress, and the life of a high-profile movie star presents plenty of stress.

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