One in five long-term love relationships began with one or both partners being involved with others.
177
40% of people who are rejected in romantic love slip into clinical depression.
72
Historically, sweat has been an active ingredient in perfume and love potions.
309
Women rate men more attractive if other women are looking and smiling at him.
17
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
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