About 8% of people have an extra rib.

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

Fact #3283 · Human Body

Your brain can store the equivalent of millions of gigabytes of information.

Fact #1783 · Human Body

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

Fact #3274 · Human Body

Only about 5% of people have detached retinas in their lifetime.

Fact #2878 · Human Body

Your bones constantly break down and rebuild.

Fact #2636 · Human Body

The human liver can regenerate lost tissue.

Fact #123 · Human Body

You replace most of your body's atoms every few years.

Fact #2681 · Human Body

Humans are the only animals with chins — no other primate or mammal has one.

Fact #3502 · Human Body