Re:One does not follow the other... (Score 1)

The issue is more complicated than your simple anecdotal evidence (based on only 2 people). Not keeping yourself healthy (by being overweight/smoking/what have you) tends to cause chronic diseases like, among many many others, chronic bronchitis and diabetes. Not to mention the increased incidence of cancer and coronary heart disease in both the obese and the smoker. Treating all of that represents by far the highest cost to any health care system, not the visit to the doctor.