Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Your heart beats over 36 million times a year.

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