Proprioception, your body's ability to sense its position in space, is sometimes called the sixth sense.

Your stomach gets a new lining every three to four days because the acid would otherwise digest itself.

Fact #3491 · Human Body

Your bones constantly break down and rebuild.

Fact #2636 · Human Body

Fingernails grow about three to four times faster than toenails.

Fact #3496 · Human Body

The human body glows faintly in complete darkness.

Fact #1686 · Human Body

The heart pumps blood through approximately 60,000 miles of blood vessels.

Fact #165 · Human Body

Goosebumps are a vestigial reflex from when human ancestors had more body hair to keep them warm.

Fact #3283 · Human Body

The human eye has a natural blind spot.

Fact #126 · Human Body

Puppies are born blind and deaf.

Fact #1344 · Human Body