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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Parents receive 1 out of every 5 Valentines.
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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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Men fall in love faster than women do.
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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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