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Did you know?
Your heart beats over 36 million times a year.
Did you know?
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.