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?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

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