Fun facts about your body

About 2/3 of your body is made of water.

Your skin has about 45 miles of nerves. Nerves help you to feel texture, temperature and pain.

You blink about 25 times each minute. You don't even have to think about it! Your body does it automatically.

Your left lung is smaller than your right lung to make room for your heart.

Frowning uses 43 muscles, but smiling only takes 17. Isn't it easier to smile?

Just like your fingers, your tongue has its own unique print, different from all others in the world!

Your eyes stay the same size from the time you were born. Your ears and nose will grow throughout your life.

Most people shed 40 pounds of skin in a lifetime.

People can live for about a month without food, but only a week without water.

To learn more, visit these sites:

A Look Inside the Human Body - designed to help children learn about how their bodies work.

Virtual Tour - Take a virtual tour of the digestive system, human heart, brain or skeleton in English or Spanish.

Human Body - Great information on this super site.

The Human Body Quiz Game