One in five long-term love relationships began with one or both partners being involved with others.
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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
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
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
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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Women rate men more attractive if other women are looking and smiling at him.
17
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!)
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