I breezed over the article but I did see longevity mentioned. My parents are in their mid 70s and they are more active and independent than their parents were.

I breezed over the article but I did see longevity mentioned. My parents are in their mid 70s and they are more active and independent than their parents were. Even my Dad sick with COPD is quite active. My Dad's father died at 52 his mother at 64, both were smokers. My mother's parents lived to age 96 for her dad and late 80s for her mother. Neither smoked both ate mainly vegetables, small portions, but were not vegetarian. I can recall my mother's parents being in a retirement home in their early 70s. But contrast that with my own parents the difference is quite dramatic. I can see it with my own generation (Gen X) many do not have kids, neither do I. And it seems Millenials the "childfree trend is a thing.