There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Your heart beats over 100,000 times a day!
54
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Your body is creating and killing 15 million red blood cells per second!
14
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
Vaccines contain formaldehyde, ethylene glycol (antifreeze), phenol (disinfectant / pesticide), and aluminum.
-14
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
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202