New research finds 1 in 4 NFL players could develop CTE in their lifetime: 'Should be a call to action'

A study found that at least one in four former NFL players may develop chronic traumatic encephalopathy in their lifetime. Dr. Julian Bailes, a neurosurgeon, called for proactive brain protection measures in response to the research findings. The study's methodology and sample size were not specified in the available information.

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