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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Kissing an infection-free partner is good for your teeth!
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You burn 26 calories in a one minute kiss.
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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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Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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