Define slim? Many "skinnyfat" (no muscle, no fat) people don't like to move, and there are lots of muscular people that enjoy exercising. Is that a function of

Define slim? Many "skinnyfat" (no muscle, no fat) people don't like to move, and there are lots of muscular people that enjoy exercising. Is that a function of bodyfat percentage? I doubt so as well. Ideal BF% in men goes from 8 to 20%, when I see lots of people above 20% in the trails or running/cycling around. Besides, if the goal is weight loss, that can be achieved with caloric restriction and zero minutes of cardio. It's thermodynamics. Move for the sake of it, not for weight loss.