Playing football may increase risk for Parkinson's disease, study says
CTE found in former soccer players, study shows
Kids should not be allowed to play tackle football - Vox
Football And CTE: In New Study, Nearly All Donated NFL Player Brains Found To Have CTE : NPR
Players With C.T.E. Doubled Risk With Every 5.3 Years in Football - The New York Times
Ex-NFL players who played tackle football in youth more likely to have thinking, memory problems - ESPN
NFL Player Chris Borland Retires Due to Concussion Risk
CTE found in former soccer players, study shows
Comparing Head Impacts in Youth Tackle and Flag Football, Concussion, Traumatic Brain Injury
Brain scans may reveal concussion damage in living athletes - WHYY
New study highlights the brain trauma risks for young athletes
The link between head injuries and CTE in football, explained - Vox
Even if you don't play contact sports, you could develop signs of traumatic brain injury, Science