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Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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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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Medication errors are three times higher among children and infants than with adults.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.