The outermost layer of your skin is entirely replaced about every two to four weeks.

Your brain filters most sensory input.

Fact #2354 · Human Body

Your nose can detect over 1 trillion different scents.

Fact #3265 · Human Body

The human body can survive hours in freezing water in rare cases.

Fact #3073 · Human Body

The human nose can distinguish thousands of different scents.

Fact #107 · Human Body

The liver is the only human organ that can fully regenerate itself.

Fact #2587 · Human Body

Your brain can recognize a familiar face in less than half a second.

Fact #2674 · Human Body

Your heart creates an electromagnetic field measurable feet away.

Fact #2347 · Human Body

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

Fact #2878 · Human Body