Human Biology - Page 5 of 5

Singing in the shower can burn an extra 10-20 Calories per song, depending on the volume and pitch of your voice.

Did you know that 15 minutes of laughing per day can help you lose weight?

The brain uses less power than a refrigerator light. The brain uses 12 watts of power - 17% of the body's energy.

In the warm summer, your nails will grow at a faster rate than they will in the cold winter.

More than half of the bones in the human body are found in our hands and feet.

If your pee is completely healthy, then that means it is also completely sterile!

Did you know that smokers have ten times more wrinkles than people that do not smoke?

Yawning is contagious, if you see somebody yawn, there's a very high chance you'll feel like yawning too.