Lack of exercise is Most Bad. If healthy living were a decision tree, amount of exercise each day would absolutely be the root node. Most people can get away

Lack of exercise is Most Bad. If healthy living were a decision tree, amount of exercise each day would absolutely be the root node. Most people can get away with eating whatever they want with a modest amount of rigorous exercise each day. Granted, they still need to control their food intake and ensure they are getting required nutrients, but that's pretty straightforward.