Part of this is a cultural issue. I completely understand why people struggle with addiction, smoking, obesity, stress, depression, and so on. I don't blame the people, but the current culture of cheap and fast food, stress, overworking, lack of time and/or energy for cooking, family, hobbies, and taking care of health. Many of these preventable diseases could be addressed by cultural changes and government care, which could decrease the cost of medical/nursing care.