A man is more likely to get a woman's phone number if he is accompanied by a dog.
20
Intelligent men tend to be more sexually faithful.
31
Wearing red increases attraction.
30
One in five long-term love relationships began with one or both partners being involved with others.
177
Yawns are more contagious among people with closer relationships.
163
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