The human gut contains about 100 times more DNA from microorganisms than from human cells.

There are more bacteria in your body than human cells.

Fact #2448 · Human Body

The human brain uses about 20% of the body's total energy despite being only 2% of body weight.

Fact #3271 · Human Body

The human brain contains about 86 billion neurons.

Fact #1676 · Human Body

Every second, your body produces millions of new cells.

Fact #2703 · Human Body

Humans have survived situations once thought impossible.

Fact #3083 · Human Body

Your brain stores memories.

Fact #2390 · Human Body

The heart pumps blood through approximately 60,000 miles of blood vessels.

Fact #165 · Human Body

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

Fact #2226 · Human Body