The eye's lens is the only transparent tissue in the body.

Teeth are the only part of the body that cannot heal themselves.

Fact #3279 · Human Body

Your nose can detect over 1 trillion different scents.

Fact #3265 · Human Body

Your brain interprets input.

Fact #2417 · Human Body

About 75% of the human brain is water.

Fact #2775 · Human Body

Queen lead singer Freddie Mercury was born with four extra teeth in his upper jaw giving him his distinct smile.

Fact #2584 · Human Body

Less than 1% of people have heterochromia, where eyes are different colors.

Fact #2869 · Human Body

The human body is about 60% water.

Fact #45 · Human Body

There are more lifeforms living in your body than human cells.

Fact #2717 · Human Body