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Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
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The human body produces and destroys 15 million blood cells every second.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.