Editing Jim McMahon (section)

===Concussions===
In a November 6, 2010 interview, McMahon admitted to having memory problems due to injuries suffered on the football field. McMahon was quoted as saying, "There are a lot of times when I walk into a room and forget why I walked in there."<ref>{{cite news | url=http://www.chicagotribune.com/sports/football/bears/ct-spt-1107-around-town--20101105,0,7989581,print.column | work=Chicago Tribune | title=Former Bears QB McMahon has memory issues | first1=Fred | last1=Mitchell | first2=David | last2=Kaplan | date=November 6, 2010 | access-date=November 10, 2010 | archive-date=December 3, 2010 | archive-url=https://web.archive.org/web/20101203141911/http://www.chicagotribune.com/sports/football/bears/ct-spt-1107-around-town--20101105,0,7989581,print.column | url-status=live}}</ref>

Along with six other retired professional football players, McMahon filed a class action lawsuit against the [[National Football League|NFL]] in August 2011, citing the league's negligence and misconduct in its handling of concussion-related injuries. It followed lawsuits filed shortly before by 75 other NFL retirees making similar claims in addition to asserting that the NFL knew about the dangers concussions posed to its athletes as far back as the 1920s and actively withheld the information from the affected and the general public until summer of 2010. The August suit that McMahon joined seeks to expand the scope of the suit to potentially all NFL players who suffered [[Concussions in American football|game-related concussions]] or head injuries.<ref>{{cite web|last=Associated Press|title=Players accuse NFL of negligence|url=https://www.espn.com/nfl/story/_/id/6874906/jim-mcmahon-other-players-sue-nfl-concussions|work=[[ESPN]]|access-date=March 19, 2012|date=August 19, 2011|archive-date=April 18, 2012|archive-url=https://web.archive.org/web/20120418142435/http://espn.go.com/nfl/story/_/id/6874906/jim-mcmahon-other-players-sue-nfl-concussions|url-status=live}}</ref>

On September 27, 2012, it was reported that, at age 53, McMahon had been diagnosed as being in the early stages of [[dementia]].<ref>{{cite web | last=Hendrix | first=Maggie | title=Super Bowl-winning quarterback Jim McMahon says he wishes he had played baseball | date=September 27, 2012 | url=https://sports.yahoo.com/blogs/nfl-shutdown-corner/super-bowl-winning-quarterback-jim-mcmahon-says-wishes-192055029--nfl.html | publisher=Yahoo! Sports | access-date=December 21, 2014 | archive-date=January 5, 2015 | archive-url=https://web.archive.org/web/20150105145649/https://sports.yahoo.com/blogs/nfl-shutdown-corner/super-bowl-winning-quarterback-jim-mcmahon-says-wishes-192055029--nfl.html | url-status=live}}</ref> 

The improvement in McMahon's health was documented in 2017 by longtime ''[[San Francisco Chronicle]]'' columnist Scott Ostler. McMahon expressed skepticism toward the effectiveness of NFL-sanctioned treatments for head and neck injuries, believing that NFL officials prioritize corporate interests over player well-being.<ref>{{Cite web | url=https://www.sfchronicle.com/sports/ostler/article/Ex-NFL-star-Jim-McMahon-spreading-gospel-of-golf-11290279.php | title=Ex-NFL star Jim McMahon spreading gospel of golf, new treatment | first=Scott | last=Ostler | work=San Francisco Chronicle | date=July 14, 2017}}</ref>