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

Your mind exists inside your brain.

Fact #2303 · Human Body

The human body can survive about 3 days without water.

Fact #3064 · Human Body

Your skin completely replaces itself about every 27 days.

Fact #3270 · Human Body

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

Fact #445 · Human Body

The human brain continues developing into your mid‑twenties.

Fact #2476 · Human Body

A human brain generates enough electrical activity to be measured outside the skull.

Fact #2500 · Human Body

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

Fact #3274 · Human Body

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

Fact #2106 · Human Body