The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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Every time you sneeze some of your brain cells die.
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It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
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The male fetus is capable of attaining an erection during the last trimester.
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Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
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The average sperm cell swims at 8 inches per hour.
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Pain travels through the body at 350 feet per second!
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At age 70, more than 70 percent of men are still potent!
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