The Human Body
The Human Body Facts you may not know about your own body 20% The brain operates on the same amount of power as a 10- watt light bulb Nerve impulses in the brain travel as fast Your brain uses 20% of the oxygen that enters your bloodstream as 170 miles per hour 80% 80% of the brain is water The brain is more active at night than during the day The largest internal organ is the small intestine The heart creates enough pressure to squirt blood 30 feet The surface area of a human lung The acid in your stomach is strong enough to dissolve razorblades is equal to a tennis court You could remove a large part of your internal organs and survive The hardest bone in the body is the jawbone Bone is stronger than some steel The feet account for one quarter of all the human body's bones The tooth is the only part of the body that can't repair itself Facial hair grows faster than any other hair on the body There are as many hairs per square inch on your body as a chimpanzee The fastest growing nail is on the middle finger Your nose can remember 50,000 different scents Pound for pound, babies are stronger than an ox. It is impossible to tickle yourself The largest cell in the body is the female egg Monday is the day of the week when the risk of heart attack We are about 1 cm taller in the morning than in the evening is greatest The smallest is the male sperm source: http://icantseeyou.typepad.com/my_weblog/2008/02/100-very-cool-E.html
The Human Body
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