The Band-Aid was originally made for the inventor's wife, who often cut and burned herself while cooking.
6
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
Like fingerprints, everyone's tongue print is different.
250
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
You share your birthday with at least 9 million other people in the world.
205
The scent of women’s tears temporarily reduces sexual arousal and testosterone production in men.
12
The human eye blinks an average of 4,200,000 times a year.
233
Couples' personalities converge over time to make partners more and more similar.
235