The single biggest predictor of love is proximity.
30
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 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Men who kiss their wives in the morning live five years longer than those who don't.
1k
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
Couples' personalities converge over time to make partners more and more similar.
235
Wearing red increases attraction.
30