In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Historically, sweat has been an active ingredient in perfume and love potions.
309
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.
28
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
When dragonflies mate, their tails form a love heart.
22
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
You burn 26 calories in a one minute kiss.
605
Wearing red increases attraction.
30