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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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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.

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There are more bacteria in your mouth than there are people in the world.

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Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

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