I agree with this and think that the role of exercise and sport in body composition is often misunderstood. The calories burned playing a five a side football

I agree with this and think that the role of exercise and sport in body composition is often misunderstood. The calories burned playing a five a side football match aren't that big a deal, neither is the BMR adjustment from going to the gym unless you really go hard on it. It makes a difference, yes, but it's not the real key. What matters is that it forces you to be to some degree mindful about what you are eating, because most sports become really shit and unenjoyable if you are out of shape, you can literally see and feel your performance decreasing.