Men who kiss their wives in the morning live five years longer than those who don't.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
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
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
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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Two in five people in the world marry their first love.
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