Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
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
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Intelligent men tend to be more sexually faithful.
31