Actually I still don't get the idea of going to the gym. I still prefer the outdoors walking everywhere I want with a heavy bag.
I always thought a good body is one that is adapted to the elements, not trained to adapt to any element. There is a joke a cousin of mine once told me : a schoolmate trying to date her, an avid gym goer, was a victim of snatch theft and couldn't catch the thief. Simply because he has too much muscle mass and was not agile enough while the thief was almost a parkour enthusiast. THe schoolmate trained in every aspect of strength and agility but is still no match for a streetwise ruffian.
Though if he caught the thief the latter would have been nothing more than a sack of crushed bones.