this is covered in the article. Lack of exercise is surely contributing to obesity, but not as much as bad eating habits. A good run could burn off 500 kcal but

this is covered in the article. Lack of exercise is surely contributing to obesity, but not as much as bad eating habits. A good run could burn off 500 kcal but a relatively small amount of sugar/carbs will negate a lot of that. There's an argument for increasing basal metabolic rate through exercise but countering a bad diet with a high BMR is making things harder for yourself needlessly.