Ali had parkinsons disease..... Boxing is the scapegoat.....there is no verifiable proof it caused him to have parkinsons......Michael j fox has the same disease at around the same age.....maybe they should look into the dangers of acting.
Regardless of the Ali question:
Do you believe that traumatic brain injuries have no long-term, negative consequences?
Recent peer-reviewed, academic studies that are published in scientific journals claim that over 1 million high school football players suffer non-diagnosed concussions every year. Do you think these studies are critically flawed? Do you think that if only 500,000 high school football players suffer concussions every year it makes high school football more palatable?