Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
The tongue is the strongest muscle in the human body.
50
Women buy four out of every 10 condoms sold.
71
When you get blackout drunk, you don't actually forget anything; your brain wasn't "recording" in the first place.
23
If you stop working out, it takes twice as long to lose strength than it took to gain it.
16
One quarter of the human brain is used to control the eyes.
43