Wearing red increases attraction.
30
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
16
Couples' personalities converge over time to make partners more and more similar.
235
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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The single biggest predictor of love is proximity.
30
Men who kiss their wives in the morning live five years longer than those who don't.
1k
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4