The peak in football participation coincided with the emergence of research of CTE in football players. Dr. Bennet Omalu identified the first case in former Pittsburgh Steelers player Mike Webster in 2002. Subsequent research by Boston University, particularly by Dr. Ann McKee starting around 2008, confirmed CTE in dozens, and eventually hundreds, of retired football players, including college and high school athletes. In 2016 the NFL's top health and safety officer acknowledged Monday there is a link between football-related head trauma and chronic traumatic encephalopathy. A 2017 study found that 110 out of 111 former NFL players examined had CTE. A lot of Moms (the majority?) don't want their sons playing football anymore.