Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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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 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
A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29