I get where you're coming from. I just always notice that when I'm in shape, it's much easier to keep in shape. Whenever I allow myself to fall out of shape,

I get where you're coming from. I just always notice that when I'm in shape, it's much easier to keep in shape. Whenever I allow myself to fall out of shape, it's much harder to get back in. Perhaps it has nothing to do with the argument at hand, but that probably contributes to my bias. Of course you're right to debunk the argument on its face, but I do wonder how much more caloric burn you get from the muscles you have during exercise, and whether that doesn't make up for it.