A couple I know in their mid-60s were both diagnosed with type 2 diabetes. They were both sedentary, overweight and ate horribly. They embarked on an ambitious diet and exercise plan, have both lost a lot of weight and are both no longer diabetic. It truly is fantastic, and I'm happy for them.
One of them is convinced that people just don't know that they can beat type 2 diabetes; she wants to publish a book about what they've done. I keep trying to tell her it's not a lack of information, but a lack of will for most people, that she and her husband are very much outliers in that regard. Her publishing their method won't change things for hardly anyone.
I'm 59 years old and have been a moderate athlete my whole life; I keep my weight decent (not as low as I'd like but well under official obesity levels), eat pretty well, get enough sleep. I am having a medical procedure done tomorrow (that's completely unrelated to anything here), and the nurse who did intake for the hospital was shocked that I don't take any prescription medications. I call that a win.