In the average lifetime a person will breath in about 44 pounds of dust.
21
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202
Banging your head against a wall uses 150 calories an hour.
57
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
It takes 17 muscles to smile, 43 to frown.
65
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30