Football, Concussions, and Preemption: The Gridiron of National Football League Litigation

tween head trauma and chronic traumatic encephalopathy (CTE) or general cognitive impairment.8 But in 2009, matters began to change.As Alan Schwarz noted, the NFL had commissioned a survey which had indicated "that dementia or similar memory-related diseases had been diagnosed in its retired players vastly more often than in the national population, [but] the League [had] claimed the study was unr…