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The average office desk has 400 times more bacteria on it than a toilet.
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.