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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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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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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