And in my experience, doing hundreds of pushups daily eliminated my chronic wrist pains caused by injuries in my youth (they've both been broken), and has never

And in my experience, doing hundreds of pushups daily eliminated my chronic wrist pains caused by injuries in my youth (they've both been broken), and has never caused any lasting harm. Considering we're talking about people who aren't doing any exercise at all for "lack of time", it's somewhat absurd to be muddying the waters talking about the opposite end of the spectrum; overtraining. The point is to just get off your ass and do some trivial calisthenics every day before you bathe. In the early stages you're only going to be able to do a handful, maybe not even one pull-up without a chair to assist you, you're not going to "overtrain" doing as many as you possibly can in this condition: we're talking about doing very little. It's emphasized because the amount you can do is proportional to how much time it requires, it's practically zero. In fact, the probable major result is a change in diet because of the brutal feedback attempting to lift your own weight repeatedly every morning can have.