Couples' personalities converge over time to make partners more and more similar.
235
Historically, sweat has been an active ingredient in perfume and love potions.
309
The single biggest predictor of love is proximity.
30
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
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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