Comment by nowayyeah

I don't know why people downvotes you. It's not an obvious thing.

To convince you, I gently ask you to see this ted.com video: "What makes a good life? Lessons from the longest study on happiness"

      http://www.ted.com/talks/robert_waldinger_what_makes_a_good_life_lessons_from_the_longest_study_on_happiness