About 70 percent of your body weight is water. See more

Your muscles make up about one-half of your body weight. See more

Everyone has thirty-two teeth. See more

There are 206 bones in your skeleton. See more

An adult human heart weighs about 10 ounces and beats over 100,000 times a day See more

If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee. See more

A cat's urine glows under a black light. See more

It is impossible for a human to lick their elbow. See more

If you have a car remote and you step out of its range, point it to your head and it will work again! See more

The cigarette lighter was invented before the match. See more

The can opener was invented 48 years after cans were introduced. See more

The typical laboratory mouse runs 2.5 miles per night on its treadmill. See more

Electricity doesn't move through a wire but through a field around the wire. See more

55% of people yawn within 5 minutes of seeing someone else yawn. Reading about yawning makes most people yawn. See more

Banging your head against a wall uses 150 calories an hour. See more

You use over 70 muscles to say one word. See more