Professional football hall of famer Joe Delamielleure has chronic traumatic encephalopathy. He goes through various treatments to help the CTE. Before he and his wife knew what it was, he had no idea what his symptoms were telling him. He was irritable, depressed, and had trouble sleeping. He describes what it was like to go from angry and not sure what was wrong, to finding out he had CTE and getting treatment, to what his life is like today.