Wearing red increases attraction.
30
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
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
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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