All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
A human being loses an average of 40 to 100 strands of hair a day.
133
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Your heart will pump about 212 million liters in its lifetime.
26