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

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

Fact #1798 · Human Body

The human nervous system can transmit signals faster than a Formula One car.

Fact #2461 · Human Body

Your skin completely replaces itself about every 27 days.

Fact #3270 · Human Body

Your brain controls your body.

Fact #2403 · Human Body

There are people alive today whose hearts have stopped for hours and were restarted.

Fact #2226 · Human Body

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

Fact #2869 · Human Body

Stress hormones prepare the body for a fight-or-flight response.

Fact #959 · Human Body

Stomach acid is strong enough to dissolve razor blades.

Fact #3267 · Human Body