When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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Intelligent men tend to be more sexually faithful.
31
40% of people who are rejected in romantic love slip into clinical depression.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Women rate men more attractive if other women are looking and smiling at him.
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