I trully believe that one of the most important factors (beside genetics and luck) is staying intellectually active for your entire life and gaining new experie

I trully believe that one of the most important factors (beside genetics and luck) is staying intellectually active for your entire life and gaining new experiences, learning new things though your entire life (the curiosity mentioned in the article) - and superagers from the article confirm that theory. 83-year old who teaches other seniors about baseball history and travels? 85-year old doing two crosswords daily, reading a lot of books on Kindle and doing a train trek across Canada? I can tell about most of people I've known for years that they are smarter than they were ten years ago. But I know people in their thirties who I considered somehow smart ten years ago and now they're much dumber. Perhaps it's coincidence that their only activities seem to be get up in the morning to do eight hours of not very complicated work and then watch TV for the rest of the day (the more stupid channel the better).