The Brain

Everything that goes on inside your body and every interaction you have with the outside world is controlled by your brain. It allows you to cope masterfully with your everyday environment. It is capable of producing breathtaking athletic feats, sublime works of art, and profound scientific insights. It also produces the enormous range of emotional responses that can take us from the depths of depression to the heights of euphoria.

"The vast majority of love and sex occurs in the brain. Your brain decides who is attractive to you, how to get a date, how well you do on the date, what to do with the feelings that develop, how long those feelings last, when to commit, and how well you do as a partner and a parent.