Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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Your heart beats over 36 million times a year.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.