One quarter of the bones in your body are in your feet!
36
In Japan, condoms are commonly sold 'door to door'!
54
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Smoking while pregnant increases the chances of spontaneous abortions (miscarriages) stillbirths and premature labor.
77
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
Every year your body replaces 98% of your atoms.
119