The human body produces about 3.8 million cells every second to replace those that die.

Only about 5% of people have detached retinas in their lifetime.

Fact #2878 · Human Body

The human eye can distinguish about 10 million different colors.

Fact #3266 · Human Body

Your liver can regenerate itself from as little as 25% of its original tissue.

Fact #3494 · Human Body

The human skin is the body's largest organ.

Fact #247 · Human Body

Your brain fills in your blind spot so you never notice it exists.

Fact #2246 · Human Body

Humans can survive extreme cold longer than extreme heat.

Fact #3068 · Human Body

Your heart beats about 3 billion times over an average lifetime.

Fact #2679 · Human Body

The human eye can distinguish millions of colors.

Fact #74 · Human Body