MuscleExtending the focus on the exterior of the asylum patient's body that was discussed in Chapter "Skin", this chapter considers how asylum doctors conceptualised and investigated the muscular system both before and after death. As researchers in psychiatric institutions began to incorporate physiological methods and instruments into their work, general paralysis was seized upon as an ideal disease for investigation. General paralytic patients suffered from a number of physical complaints-from atrophying muscles to disordered locomotion-that, at a time of increasing interest in the connection between brain and body (such as cerebral localisation), suggested that the disease did serious harm to the brain. The link between body and brain was investigated in several ways, such as searching for structural damage to the brain substance during postmortems. It was also investigated in ways that necessitated the active or passive involvement of the patient during life. Testing the patient's articulation, strength, or walking ability became a crucial part of physical examination, with many patients also leaving their own inscriptions in historical records alongside those of doctors and medical technologies. In examining physical abilities, though, doctors also found themselves confronting the rather complex issue of willpower-the control of patients over their own bodies, for example, or the frequent and seemingly purposeless thefts often committed by general paralytics. The degeneration of the bodily fabric-particularly of the muscles, which were symbolic of strong and vigorous masculinity-was a worrying illustration of the state of the brain, then, as well as a phenomenon that could have serious socio-economic consequences for patients and their families.