Families across the country are grappling with the decision to let children play tackle football following a new study linking the sport to chronic traumatic encephalopathy. The research, examining hundreds of N. F.

L. cases over six years, found that at least one in four former professional players developed C. T. E., a degenerative brain disease causing memory loss, depression, and dementia.

In Midland, Texas, Greta Braker wrestled with the choice for her seventh-grade son, Thomas, who begged to join his school team to avoid social isolation. Meanwhile, psychiatrist Matthew Sager from Madison, Wisconsin, expressed guilt over allowing his high school senior son, August, to play, noting he had invested in a $700 helmet for protection. In Aurora, Ohio, brand communications expert Monica Whitehurst has already decided her fourth-grade son will stick with flag football, despite her son's pleas to switch to the tackle version.

She compared the decision to giving children cellphones, emphasizing it is a personal choice every family must make. The study has added a layer of fear and uncertainty to parents who have reluctantly allowed their children to play, prompting difficult conversations about the long-term health risks of contact sports.