"With better equipment and resting people right after an injury, it may be that when guys nowadays age, [these impairments] won't be present," said Guskiewicz, who is a member of the NFL head, neck and spine committee.
Ex-Cowboy Johnston is now working with the Center for BrainHealth to recruit other former players to get evaluated, UT Dallas staff said.
More information
You can find more about cognitive impairment at the U.S. National Institute on Aging.
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