In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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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
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
40% of people who are rejected in romantic love slip into clinical depression.
72
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Men who kiss their wives in the morning live five years longer than those who don't.
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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130