When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
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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'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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The left ear is more responsive to words of love and emotion whispered into it than the right.
44
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
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Speed dating was invented by a Rabbi in 1999.
45
Couples' personalities converge over time to make partners more and more similar.
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