This is one of those areas where it’s quite obvious how much confirmation bias there is in medicine. I told the patient to do X, they did X and they are better. Only the patient either didn’t do X and lied or they did X and something else and didn’t argue with the doctor about it.

How many people over the centuries have been told to stay off their cast but got up to get their kid or themselves some cookies from the top shelf? Or to do chores because nobody else was picking up the slack?