As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
687
Parents receive 1 out of every 5 Valentines.
20
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!)
278
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
The single biggest predictor of love is proximity.
30
Historically, sweat has been an active ingredient in perfume and love potions.
309
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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