Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
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