Women rate men more attractive if other women are looking and smiling at him.
17
Intelligent men tend to be more sexually faithful.
31
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
16
40% of people who are rejected in romantic love slip into clinical depression.
72