A new study reveals how the National Hockey League is adapting its player safety protocols in response to growing concerns over concussions and long-term brain health. Researchers examined the league’s implementation of stricter enforcement of rules, including penalties for high-hit plays and mandatory baseline neurocognitive testing for players. The findings highlight ongoing debates over balancing player safety with the physical demands of the sport, as well as the NHL’s efforts to reduce the risk of traumatic brain injuries. Experts weigh in on whether these measures will be enough to protect athletes in the long term.