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Did you know?
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.