There was a study https://www.ted.com/talks/robert_waldinger_what_makes_a_good_life_lessons_from_the_longest_study_on_happiness?language=en https://www.ted.com/

There was a study https://www.ted.com/talks/robert_waldinger_what_makes_a_good_life_lessons_from_the_longest_study_on_happiness?language=en https://www.ted.com/talks/robert_waldinger_what_makes_a_good... on what made adult men the happiest over their lives. Supposedly it’s having the back of people that also have yours.