You see your nose at all times, your brain just chooses to ignore it.
30
Redheads require up to 20% more anesthesia to be knocked out.
112
In the average lifetime a person will breath in about 44 pounds of dust.
21
The human body contains over a billion miles of DNA.
147
It takes about 20 seconds for a red blood cell to circle the whole body.
102
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Smoking while pregnant increases the chances of spontaneous abortions (miscarriages) stillbirths and premature labor.
77