Yawns are more contagious among people with closer relationships.
163
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Anuptaphobia is the fear of staying single.
11
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
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