Crazy Facts: Human Body

The muscles that control your eyes contract about 100,000 times a day (that's the equivalent of giving your legs a workout by walking 50 miles).

The average person produces enough saliva in their lifetime to fill 2 swimming pools.

It can take your finger and toenails 1/2 a year to grow an entirely new nail (from base to tip).

Your brain uses about 20% of your oxygen and caloric intake.

It's nearly impossible to tickle yourself.

In just 30 minutes, your body can produce enough heat to boil half a gallon of water

You'll be about 1cm shorter when you go to bed at night compared to when you wake up in the morning. Your cartilage in your spine slowly compresses throughout the day.

Nerve impulses to and from the brain travel as fast as 170 miles per hour

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

One out of every 2,000 newborn infants has a tooth when they are born

Your eyes are always the same size from birth but your nose and ears never stop growing

Monday is the day of the week when the risk of heart attack is greatest.

The fastest growing nail is on the middle finger

Your brain uses 20% of the oxygen that enters your bloodstream   

Every day the average person loses 60-100 strands of hair.

The largest internal organ is the small intestine

Women’s hearts beat faster than men’s.