If you stop working out, it takes twice as long to lose strength than it took to gain it.
16
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16
In one day, adult lungs move about 10,000 litres of air.
11
Every time you lick a stamp, you're consuming 1/10 of a calorie!
47
You inhale about 700,000 of your own skin flakes each day.
29
A human being loses an average of 40 to 100 strands of hair a day.
133
Surgeons who listen to music during operations perform better than those who don't .
87
The human body contains over a billion miles of DNA.
147