Dear Annie: My husband has given up trying to be healthy

Dear Annie: My husband of 35 years has taken to letting himself go. We are both in our 60s and have, in the past, enjoyed hiking, walking around our neighborhood and getting some exercise. He is a recovered alcoholic and has a powerful taste for sweets, eating them often and usually clandestinely. He has gained a fair amount of weight and has had some recent problems with his knees and one hip. I have suggested exercise and a sensible diet, but he does not seem to find it an important...