Historically, sweat has been an active ingredient in perfume and love potions.
309
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Yawns are more contagious among people with closer relationships.
163
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
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
40% of people who are rejected in romantic love slip into clinical depression.
72
Intelligent men tend to be more sexually faithful.
31