Yes but the healthy body leads to a healthier mind. If you start with the mind and the body is falling apart, how healthy can you make your mind, really? Where as if you start with the body and then move to the mind, you are in a better position imo. As long as your goal is self mastery you will probably end up in the same place with either, but if you are just starting out, I think body first has the greater impact. I’m sure it varies person to person