Lung surface area is approximately 70 square meters — the size of a tennis court.

The human nose can distinguish thousands of different scents.

Fact #107 · Human Body

There are signals traveling through your nervous system right now at speeds over 200 miles per hour.

Fact #2497 · Human Body

There are more lifeforms living in your body than human cells.

Fact #2717 · Human Body

Your stomach replaces itself every few days.

Fact #1696 · Human Body

The human brain can store vast amounts of information.

Fact #2646 · Human Body

Your brain fills in blind spots in your vision automatically.

Fact #2740 · Human Body

Your mind exists inside your brain.

Fact #2303 · Human Body

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

Fact #2044 · Human Body