Teeth are the only part of the human body that cannot repair themselves.

The human eye can distinguish millions of colors.

Fact #74 · Human Body

The human heart has four chambers.

Fact #306 · Human Body

The human body contains trillions of cells.

Fact #90 · Human Body

Roughly 80% of people will experience back pain at some point in their lives.

Fact #2777 · Human Body

Humans shed about 30,000 to 40,000 dead skin cells every hour.

Fact #3628 · Human Body

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

Fact #3279 · Human Body

The human brain continues developing into your mid‑twenties.

Fact #2476 · Human Body

The average human body contains enough carbon to make about 9,000 pencils.

Fact #2444 · Human Body