Lack of water is the #1 trigger of daytime fatigue.
148
The human sigh acts as a physiological reset button.
23
Like fingerprints, everyone's tongue print is different!
71
Only 1% of bacteria cause disease.
45
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
If you are bitten by a poisonous snake, and fail to receive medical attention, you still have a 50% chance of survival.
28
The human heart creates enough pressure to squirt blood 30 ft.
37