Your stomach gets a completely new lining every three to four days.

An African elephant's ears help regulate its body temperature.

Fact #445 · Human Body

Your brain rewires itself constantly through neuroplasticity.

Fact #2698 · Human Body

Your brain processes reality.

Fact #2399 · Human Body

Goosebumps are a vestigial reflex — in our hairier ancestors, they made fur stand up to appear larger or stay warm.

Fact #3505 · Human Body

Only about 10% of people have a dominant left eye.

Fact #2876 · Human Body

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

Fact #3502 · Human Body

The human skeleton renews itself over time.

Fact #133 · Human Body

Your stomach gets a new lining every few days to avoid digesting itself.

Fact #2711 · Human Body