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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Wearing red increases attraction.
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Raj from the Big Bang Theory is married to Miss India.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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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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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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