“…It suggested that increasing population density had pathological effects on their physiological functioning and behaviour; such effects in turn served to regulate the growth of the population (Calhoun, 1962; Christian, 1961). Soon, though, crowding was found to have a whole series of negative effects on humans, including high blood pressure (Paulus, McCain, & Cox, 1978), reduced task performance and cognitive ability (Baron, Kerr, & Miller, 1992; Worchel & Teddlie, 1976), aggression and perceived aggression (Lawrence & Andrews, 2004; Leyhausen, 1965), attitudes towards the institutional environment (McCain, Cox, Paulus, Luke, & Abadzi, 1985), and reductions in both interpersonal attraction and altruism (Veitch & Arkkelin, 1995).…”