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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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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.