Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Women rate men more attractive if other women are looking and smiling at him.
17
Men fall in love faster than women do.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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