Your lifestyle is a huge factor in determining your health. Alcoholism, cigarette addiction, poor diet and a sedentary lifestyle are all practically guaranteed to cause health problems later in life
So, you want to completely deny the coercion of the tobacco companies who knew the facts on nicotine addiction but continued to advertise them as a lifestyle enhancement and deny the health implications? You want to ask Native Americans how much of a choice alcoholism is? Have you noticed where the subsidies from the USDA go? We, economically, make it such that if you are lower middle class, the only nutrition you can afford is of such poor quality that you are just about guaranteed to either be starving or obese, not healthy. Its hard to not be sedentary when you're either dealing with malnutrition or horrid side effects from the onset of diabetes due to our ag system being a subsidized corn syrup production model.
Learn a little bit about the socio-economic factors and the serious corporate corruption in our system that cause these things before you start immediately blaming the "lazy poor". How many poor people do you know? I grew up wondering where the next meal was coming from and it wasn't because my mother wanted to work two jobs and never see her kids.