Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
The human brain doesn't stop developing until about 25 years old.
102
The human brain has the capacity to store everything that you experience.
4k
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
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
A human being loses an average of 40 to 100 strands of hair a day.
133