The largest cell in the human body is the female egg and the smallest is the male sperm

You use 200 muscles to take one step

The average woman is 5 inches shorter than the average man

Your big toes have two bones each while the rest have three

A pair of human feet contains 250,000 sweat glands

The acid in your stomach is strong enough to dissolve razor blades

The human brain cell can hold 5 times as much information as the Encyclopedia Britannica

It takes the food seven seconds to get from your mouth to your stomach

The average human dream lasts 2-3 seconds

Men without hair on their chests are more likely to get cirrhosis of the liver than men with hair

There are about one trillion bacteria on each of your feet

Your body gives off enough heat in 30 minutes to bring half a gallon of water to a boil

The enamel in your teeth is the hardest substance in your body

Your teeth start growing 6 months before you are born

When you are looking at someone you love, your pupils dilate,and they do the same when you are looking at someone you hate

Your thumb is the same length of your nose