By weight, Bone is five times stronger than steel.
417
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
One human hair can support 3 ounces.
191
Sex burns about 360 calories per hour.
860
You burn more calories sleeping than you do watching television.
348
Dieters who sleep more take off more fat that those who sleep less.
159