Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 26 · Episode 2 ·
The Poison that Waits
Horizon reports on the abnormally high incidence of and the early onset of diseases such as senile dementia and Parkinson's disease on the island of Guam in the Pacific. Scientists have now linked the diseases to a poison in the native cycad fruit.
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Episode 2 of season 26 of Horizon: “The Poison that Waits”. Aired 1989-01-16. Watch it online free on ZapFlix.