Tigers can see 6 times better at night than humans.
305
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
The average sperm cell swims at 8 inches per hour.
4
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118