The single biggest predictor of love is proximity.
30
Kissing an infection-free partner is good for your teeth!
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
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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One in five long-term love relationships began with one or both partners being involved with others.
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Two in five people in the world marry their first love.
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In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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