You can alleviate a tickly throat by scratching your ear.
9
In Japan, condoms are commonly sold 'door to door'!
54
We blink 25 times a minute.
51
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
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
Lack of water is the #1 trigger of daytime fatigue.
148
Crushed cockroaches can be applied to a stinging wound to help relieve the pain.
31
A fetus develops fingerprints at eighteen weeks!
32