The left ear is more responsive to words of love and emotion whispered into it than the right.
44
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Speed dating was invented by a Rabbi in 1999.
45
Wearing red increases attraction.
30
Couples' personalities converge over time to make partners more and more similar.
235
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
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
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