When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
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
One in five long-term love relationships began with one or both partners being involved with others.
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Intelligent men tend to be more sexually faithful.
31
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
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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