If you are cold you are more likely to be hungry because you use energy to keep warm.
144
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The human body contains over a billion miles of DNA.
147
Held in farts enter your bloodstream and are bad for your body.
26
There are about 1,400 different species of bacteria in your belly button.
10
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
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
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13