The human brain uses approximately as much energy as a 10 watt light bulb.
120
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
One human hair can support 3 ounces.
191
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
The average sperm cell swims at 8 inches per hour.
76
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The human sigh acts as a physiological reset button.
23
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99