Are you sure you're not just looking for a rationalization saying that you can live any way you want and still be "happy"? Of course I'm not ruling out that th

Are you sure you're not just looking for a rationalization saying that you can live any way you want and still be "happy"? Of course I'm not ruling out that this is possible. An obese smoker might live to 101 and laugh about it. An athlete might die of Leukemia at age 21. Life is uncertain, you can make of the odds whatever you want. On the other hand: Obesity is associated with lower self-reported happiness https://www.ncbi.nlm.nih.gov/pubmed/24336235 https://www.ncbi.nlm.nih.gov/pubmed/24336235 Physical activity helps depression: https://www.bmj.com/content/361/bmj.k1808 https://www.bmj.com/content/361/bmj.k1808 You also need to count in all the ailments that can result from obesity and lack of exercise, none of which are going to contribute positively to one's level of well-being. Of course it's not all about the length of a life, but the things that cut lives short tend to be quite unpleasant.