Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Kissing an infection-free partner is good for your teeth!
141
40% of people who are rejected in romantic love slip into clinical depression.
72
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
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
When dragonflies mate, their tails form a love heart.
22
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44