When dragonflies mate, their tails form a love heart.
22
You burn 26 calories in a one minute kiss.
605
40% of people who are rejected in romantic love slip into clinical depression.
72
The single biggest predictor of love is proximity.
30
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104