You get fit, you can sleep better, it calms you down, you have a good time there, you accomplish something. Why is "going to the gym" not a hobby? There is ple

You get fit, you can sleep better, it calms you down, you have a good time there, you accomplish something. Why is "going to the gym" not a hobby? There is plenty of different stuff you can do and focus on and switch to after something else becomes boring or to easy. I wouldn't say that other activities provide more value for a balanced life, I would argue, that going to the gym makes it easier to have a balanced life (focus on food, sleep, persistence, getting relaxed, reduced stress levels etc.).