You burn 26 calories in a one minute kiss.
605
Two in five people in the world marry their first love.
270
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
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
Historically, sweat has been an active ingredient in perfume and love potions.
309
Men fall in love faster than women do.
32
Wearing red increases attraction.
30
One in five long-term love relationships began with one or both partners being involved with others.
177