Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Intelligent men tend to be more sexually faithful.
31
Women rate men more attractive if other women are looking and smiling at him.
17
Historically, sweat has been an active ingredient in perfume and love potions.
309
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
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