They work out. A lot. Many begin the day they arrive, and never stop. Some prisons offer weights and tracks, basketball courts and the like, others offer farmwork.

Most convicts realize that it’s healthier to be fit. They realize they might defend themselves better if they are fit and strong. They also realize they have just about unlimited time. So the time worn adage of “I’d work out if I only had the time” is one that just won’t fly in prison.