The average tastebud lives only 10 days before it dies and is replaced by a new one.
15
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Chewing gum boosts your brain power.
285
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95
There are about 1,400 different species of bacteria in your belly button.
10
Only 1% of bacteria cause disease.
45
There are 206 bones in the human body!
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