Harvard and Yale Should Give Up Football

Factors Influencing Clinical Correlates of Chronic Traumatic Encephalopathy (CTE):

These clinical symptoms are highly variable, non-specific to individuals described as having CTE pathology in case reports, and are often associated with many other factors. This review describes the cognitive, emotional, and behavioral changes associated with 1) developmental and demographic factors, 2) neurodevelopmental disorders, 3) normal aging, 4) adjusting to retirement, 5) drug and alcohol abuse, 6) surgeries and anesthesia, and 7) sleep difficulties, as well as the relationship between these factors and risk for developing dementia-related neurodegenerative disease.

www.ncbi.nlm.nih.gov/pubmed/27561662

Not nearly enough conclusive evidence exists to say that people should not be playing football. There are certainly risks but there are many, many factors which can contribute to cognitive issues later on in life. It just so happens that if someone had played football it is ALWAYS identified as the reason for any issues .