The average person's skin weighs twice as much as their brain.
131
A person can live without food for about a month, but only about a week without water.
156
Held in farts enter your bloodstream and are bad for your body.
26
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The human body contains over a billion miles of DNA.
147
In 1996, research found that having excessive body hair is linked to higher intelligence.
23