'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Two in five people in the world marry their first love.
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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.
27
Parents receive 1 out of every 5 Valentines.
20
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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