SUD affects each of these areas because it changes how we behave. As said before motivation is needed with rehabilitation and SUD can cause it to drop, also it effects how we sleep and eat. Prosthetics may not be a part of the muscles but they would still need to healthy in order to fully get compensatory skills (learning how to move the device in the easiest manner and maintain balance). When the substance disorder becomes moderate to severe, the person might start having financial problems which can lead to them not being about to continue