You burn 26 calories in a one minute kiss.
605
A man's beard grows fastest when he anticipates sex.
239
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Wearing red increases attraction.
30