This question has been asked here, but I have yet to see any explanation offered (even "we don't know why, but it's been tried and it doesn't work").
Will working out every day on different muscle groups cause more harm than good? If so, why?
(I avoid using the word "overtraining", because it seems different people take that to mean different things)
I am not asking this as it pertains to my specific workout, because I might change my workout based on the answer presented.
So far, I've found very few, contradicting answers with no explanations at all.
My goal, if you must know, is to exhaust myself so I can sleep better. I see exercise as a possible magic cure for my lack of energy. But getting stronger would also be nice.