The major interaction that goes on in gyms is not between members or between members and staff, but between the fitness devotee and his or her body. The body must be trained, disciplined, and put to ever more demanding tests, all administered and evaluated by the devotee’s conscious mind. Compared to the mind, the body can be thought of as an animal, usually a domesticated or partially domesticated animal—capable of reflex and habit, though not of course conscious decision making.

