Yep, I used to live near an old folks home where there were a lot of old fatties and old smokers. Sure, both groups had people who managed to get into their latter years. But my god what a living hell they'd mired themselves in. There was often overlap between the two groups. And they shared a lot of the afflictions. Which involved difficulty breathing, and a propensity for strokes and heart attacks. The aftereffects of both were something that you'd see in a lot of them.  Meanwhile a nearby park had people far older jogging every day.