When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
When dragonflies mate, their tails form a love heart.
22
Men who kiss their wives in the morning live five years longer than those who don't.
1k
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
In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
44
You burn 26 calories in a one minute kiss.
605
The single biggest predictor of love is proximity.
30
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104