When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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Women rate men more attractive if other women are looking and smiling at him.
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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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Historically, sweat has been an active ingredient in perfume and love potions.
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Anuptaphobia is the fear of staying single.
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According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
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