DETROIT (AP) -A former leader of the NFL’s committee on concussions has told Congress that more study needs to be done on the effects that performance-enhancing drugs could have on the brains of football players.
Dr. Ira Casson was among the witnesses scheduled to testify Monday at a House Judiciary Committee hearing on brain injuries in football. Lawmakers had complained that Casson did not appear at the panel’s hearing on the same topic in October.
He resigned as co-chairman of the NFL’s committee on mild traumatic brain injury in November.
In written testimony Monday, Casson says “there is not enough valid, reliable or objective scientific evidence at present to determine whether or not repeat head impacts in professional football result in long term brain damage.”
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