Myths: 10% of brains: false, we use all of our brains, if theres brain damage then you wont use. Evolution wouldn"t waste the space of this brain that so many factors were considered to make it larger. Impact bias: the tendency to overestimate the hedonic impact of future events. After 3 months a big event will not impact your happiness. Synthetic happiness: what we make when we don"t get what we want. Natural happiness: when we get what we want. We prioritize natural because not getting what we want cant be as valuable as getting what we want. When theres more than one option you may not be happy with your decision because you compare and think of what could be. Money and happiness: theres a correlation until you make more than 75k per year; increases happiness and then it stops and stays level (depends on where you live) Hedonic treadmill: you never stop wanting ex.