It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
A human being loses an average of 40 to 100 strands of hair a day.
133
The human brain uses approximately as much energy as a 10 watt light bulb.
120
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
A person can live without food for about a month, but only about a week without water.
156
One human hair can support 3 ounces.
191
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89