Body transformation - it is an illusion to think you can do it without injuries.
That is pure attitude is pure stupidity IMO. Sure, you're going to get knocks and perhaps some acute injuries if you're unlucky, but training in a way that you're chronically injuring yourself is just bad training.
What's the point in having phenomenal skills in your later years if you can't walk or use your hands properly?
You shouldn't be giving such dumb advice on a public forum.