Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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Kissing an infection-free partner is good for your teeth!
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Historically, sweat has been an active ingredient in perfume and love potions.
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Raj from the Big Bang Theory is married to Miss India.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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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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