From Reuters, on a study in patients with coronary artery disease that looked at fitness levels and BMI:
[Heart specialist and study leader Dr. Francisco] Lopes-Jimenez said, the lesson for patients is clear: try to improve your physical fitness. “It is much easier to become fit than it is to become slim,” he said. “Anybody who has gone into an exercise program would agree with that.”
While Lopes-Jimenez seems to presume his patients want to exercise (or otherwise take action to improve their health) it is radical to see a heart specialist stating that a person can improve their fitness without being slim. Or that exercise doesn’t automagically cause slimness. Or that it can be easier to become fitter than to become thinner — which has certainly been true in my case.