When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Wearing red increases attraction.
30
Couples' personalities converge over time to make partners more and more similar.
235
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
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.
130
Men fall in love faster than women do.
32