This is related, the notion that urban areas are not as healthy as they were reported: https://news.ycombinator.com/item?id=13854928 https://news.ycombinator.c

This is related, the notion that urban areas are not as healthy as they were reported: https://news.ycombinator.com/item?id=13854928 https://news.ycombinator.com/item?id=13854928 That suggests a long-term downward trend.