Stronger by Science did a deep dive into some studies by exercise scientists into Amish activity, diet, and body composition trackers a few years back. I hope I

Stronger by Science did a deep dive into some studies by exercise scientists into Amish activity, diet, and body composition trackers a few years back. I hope I'm relaying faithfully, but as I recall, it was something like 18,000 steps a day, 9% body fat, and ~4,000 calories of food intake for the men. The step count belies far more demanding levels of activity, as this isn't just leisurely walks in the park but hard manual farm labor. Women were much more comparable to post-industrial populations, but with the enormous confounder that they were pregnant almost all the time. Diet is just huge amounts of potatoes, grains, and pastured meat they're producing themselves. I had a girlfriend almost 20 years ago whose family made an interesting case study. They lived on a farm in Amish country in Lancaster County, PA, but theirs was the only land that was not Amish. They were actually still off the grid electrically, but her dad was an engineer turned farmer that ran his own generators off of waste vegetable oil he collected for free from the restaurants in Philadelphia he sold food to. Their cars were also modified to run off of that. They had lifestyles otherwise much more inline with typical American lifestyles. Her dad and brother were both enormous, probably over 300 pounds each. As far as I can tell from searching right now, they seem to still be alive and a lot has been written about them over the years, along with interviews and features on YouTube. In short, though, I think there are limitations to the assumptions you can make about carcinogen exposure just looking at non-Amish who live near the Amish. Even when you're literally next door, you've got the same air and the same water, but you travel, are much more regularly exposured to vehicle and engine exhaust, eat food that was shipped in from elsewhere. You probably don't stay in the same place your entire life.