The human eye can detect a candle flame over a mile away in darkness.
Fact #2633
More Human Body Facts
The human brain can store vast amounts of information.
Fact #2646 · Human Body
The heart pumps blood through approximately 60,000 miles of blood vessels.
Fact #165 · Human Body
The small intestine is about 20 feet long despite being called 'small' — the name refers to its width.
Fact #3499 · Human Body
Every hour, humans shed about 600,000 skin cells.
Fact #3281 · Human Body
The human body generates electricity.
Fact #2662 · Human Body
People can survive weeks without food under certain conditions.
Fact #3065 · Human Body
An individual blood cell takes about 60 seconds to complete a full circuit of the body.
Fact #2616 · Human Body
The human body is about 60% water.
Fact #45 · Human Body
Want more facts?
We have over 11,491 facts across 15 categories.