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.
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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40% of people who are rejected in romantic love slip into clinical depression.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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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
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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