Inmates in a normal prison are focused on how much time they are going to serve, on contacting their lawyers, on being able to take constructive efforts to get out; these are important ways prisoners deal with the stress of confinement, and these guys can't do anything."
Inmates within a typical prison focus on the length of their sentences, contacting lawyers, and taking actions that could lead to early release; these are important ways prisoners cope with the stress of imprisonment, but they are unable to do much.