Human Body Myth or Fact

People with more melanin (giving them darker skin color) wrinkle later than people with less melanin.

Your skin is the largest organ in your body

Finger nails and hair continue to grow after death

We lose most of our heat out of our heads

If you swallow gum it stays in your stomach for 7 years

Cracking knuckles causes arthritis

Your bones are pound for pound stronger than concrete

Your foot and forearm are the same length

An average person will spend 25 years asleep

Fidgeting can burn 350 calories a day

The most active muscles in your body belong to your eyes

The ability to roll your tongue is genetic

You should drink 8 glasses of water per day

A woman's brain shrinks during pregnancy (but becomes more efficient)