Former NFL quarterback Matt Hasselbeck is participating in research related to chronic traumatic encephalopathy, or CTE. Hasselbeck, who played 17 years in the NFL, recently underwent tests at Boston University to assess the impact of head collisions on his brain. The research aims to better understand CTE, which has affected some of Hasselbeck's friends and former teammates.

By volunteering for the study, Hasselbeck hopes to contribute to a greater understanding of the condition. Further details on Hasselbeck's involvement in the research are available from the source, KXXV News.