Former NHL linesman Pat Dapuzzo is just one of a number of hockey players who have been in multiple collisions and have sustained multiple concussions as a result. He is also among the number for whom the consequences of those injuries are ongoing.

Dapuzzo, retired from active play and now a scout for the Toronto Maple Leafs, has battled depression post-concussion. He has made a commitment to donate his brain and spinal cord to the Boston University Center for the Study of Traumatic Encephalopathy.

Read the article “Recovery Doesn’t Stop After Injuries Heal” at nytimes.com.