The main problem the NHS faces is not caused by lack of exercise or poor diet, and particularly not by poor people. It's caused by age, which we can't do anything about, and a policy of cutting public services based on an entirely discredited study.
Age is a big problem sadly
Wife works where there is a lot of old poorly people, a lot of which their brain is mush and they have no quality of life, yet advancements in medicine are keeping them alive for longer even if they cannot move or feed or anything..
Controversial I know but if these were domestic pets they would be made not to suffer.