Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
The human sigh acts as a physiological reset button.
23
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
One quarter of the bones in your body are in your feet!
36
When your face blushes, the lining of your stomach turns red, too.
154
In Japan, condoms are commonly sold 'door to door'!
54
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139