I'm no medical expert, but, save for problems we are born with or have a genetic disposition to developing, I would have thought that many adult illnesses/diseases can be traced back to either being caused by or exacerbated by our lifestyle. Whether this be smoking, drinking, eating the wrong foods, lack of exercise, too much exercise (causing joint problems etc) suffering severe stress (severe stress can be a contributing factor to high blood pressure and heart disease), frequent flying, using certain deodorants and other personal hygiene/beauty products (some people are of the opinion that certain cancers, such as breast cancer, can be caused by using deodorant and that inhaling hairspray can damage your lungs) etc etc. Who or you or anyone else to judge whether another person 'deserves' medical treatment?