There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Pain occurs when sounds are above 130 db.
124
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23