alt Hacker News> The actual science is unimaginably boring. Do not be overweight on the BMI scale and do some moderate exercise for around 2 hours every week.
Don't be depressed is also excellent advice for people with depression: if they can manage that, it improves their mood tremendously. Not catching colds also greatly reduces your chances of cold-like symptoms.
By which I mean, what you're saying is a truism, not medical advice. Keeping your BMI under control is a natural no-effort thing for some people, and a grueling lifelong struggle for others. Telling fat people to stop being fat is not "advice", it is exactly as helpful as telling sick people to stop being sick.
Absolutely, the issue of obesity is not just getting people to exercise more I 100% agree. The actual science of having someone diet, exercise and stick to that engagement is literally endlessly complicated and part of the reason why GLP-1 drugs are a big deal they can be given to almost anyone who meet the clinical criteria and see a drastic improvement in overall health and mortality.
That doesn't detach from the reality of the objectives, getting there is difficult for people and there is more research to be done.
FYI: None of my posts are medical advice and I am not a doctor