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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The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Parents receive 1 out of every 5 Valentines.
20
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
When dragonflies mate, their tails form a love heart.
22
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
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
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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