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Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.