Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 25 · Episode 3 ·
Playing With Madness
In the report by Horizon, they looks at manic depression and how is now known that it has a strong genetic component.
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Episode 3 of season 25 of Horizon: “Playing With Madness”. Aired 1988-01-18. Watch it online free on ZapFlix.