“…Among other things, we know from early research that prison overcrowding increases negative affect among prisoners (e.g., Paulus, Cox, McCain, & Chandler, 1975), elevates their blood pressure (e.g., D'Atri, 1975), and leads to greater numbers of prisoner illness complaints (e.g., McCain et al, 1976). Moreover, exposure to "long-term, intense, inescapable crowding" of the sort that characterizes many prison environments results in high levels of stress that "can lead to physical and psychological impairment" (Paulus, McCain, & Cox, 1978, p. 115;see, also, Ostfeld, Kasl, D'Atri, & Fitzgerald, 1987).…”