Crazy kissing facts -65% of people tilt their heads to the right when kissing instead of the left -men who kiss their wives in the morning live five years longer than those who don`t -some theorize that when you kiss a person with the same hair color as yourself, the result is a more passionate kiss. -on average a human will spend up to 2 weeks kissing in his/her lifetime. -our brains have special neurons that help us find each others lips in the dark