When dragonflies mate, their tails form a love heart.
22
Couples' personalities converge over time to make partners more and more similar.
235
In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
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
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