Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Drinking watermelon juice before a workout helps reduce muscle soreness.
21
Carrots were originally purple. The dutch monarch planted carrot seeds together until the carrots grew orange to match their royal color - The House of Orange. Orange carrots were a symbol of prestige.
13
Research has shown that allowing chocolate to melt in your mouth produced brain and heart rate activity that was simliar to - and even stronger than - that produced with passionate kissing.
173
Kissing an infection-free partner is good for your teeth!
141