Safety
Anatomy and biomechanics raise questions about whether strictly enforcing the game's rules could increase the risk of injuries.
New study boosts the promise of one day being able to diagnose concussions quickly and easily on the sidelines.
Could using lighter-weight balls in practice be a safer way to speed up a pitcher's arm -- and the ball?
A conversation with Kathleen Bachynski, the author of a new history of youth tackle football.
Panel of experts says there is not enough evidence to give solid recommendations on many youth sports safety issues.
The telltale tau proteins present in the disease known as CTE display distinctive features.
New study suggests at least one in 10 NFL players could eventually develop the brain disease.
New safety rules pose challenges for players and officials.
Two small clinical studies show brain changes among young football players with a history of concussion and exposure to high-impact hits.
Scientific advances in the way doctors diagnose and treat concussions.
The goals of a major push for football helmet safety should bring improvements, but the overall results remain unpredictable.