Intelligent men tend to be more sexually faithful.
31
Wearing red increases attraction.
30
Women rate men more attractive if other women are looking and smiling at him.
17
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
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Historically, sweat has been an active ingredient in perfume and love potions.
309
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
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