Charles is overweight, he’s a smoker, has poor eating habits and zero physical activity. His heart specialist (luckily he never had any serious issues) is one of the best in the world.
Kenny, on the other hand, is very careful about his diet, doesn’t smoke, exercises on regular basis and doesn’t have a heart specialist.
That’s all you know about them. Who do you think will have more health problems in the future? Who will live longer?