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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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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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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.