In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
The average person will go on a date at least 100 times before they finally marry.
33
You burn 26 calories in a one minute kiss.
605
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
A man's beard grows fastest when he anticipates sex.
239
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25