When dragonflies mate, their tails form a love heart.
22
Wearing red increases attraction.
30
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
The single biggest predictor of love is proximity.
30
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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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
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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41