hypothesis in which he explores different ideas about to happen is exposing them to scientific research paul zak is a neuro economist and the founding director of the center for neuro economic studies at tramline graduate university and he studies the role of hormone toes and and how it would have made us what is the hypothesis. this is the title of the publishers made up for my book as i was writing it and i don't know what that is by the time i finished the book i realized actually there are three. obvious one is we get happy when we get what we want but everyone knows that's not true you succeed and then almost right away you're on to what's in. thing the deeper one which you find buddhist stoics all over the ancient world is happiness comes from within it does not sound wise and to some extent it is you're not going to become happy by making the world conform to your wishes so work on yourself be more accepting and that's there's a lot of truth to that. by the end of the book is that the best way to say it is that happiness comes from between from getting the right relationship between yours