The human eye has over 100 million photoreceptors — but only about 1 million nerve fibers in the optic nerve.

The human eye has a natural blind spot.

Fact #126 · Human Body

Your brain forms memories.

Fact #2409 · Human Body

Humans shed about 30,000 to 40,000 dead skin cells every hour.

Fact #3628 · Human Body

Your brain creates thought.

Fact #2427 · Human Body

Your ears never stop working, even when you're asleep — your brain just filters the sounds out.

Fact #3507 · Human Body

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

Fact #2112 · Human Body

The human liver can regenerate lost tissue.

Fact #123 · Human Body

There are more bacteria in your body than human cells.

Fact #2448 · Human Body