ABOUT THIS SERIES

The youth concussion problem in Canada:

Day 1: How the death of a 17-year-old rugby player prompted calls for a law to better protect vulnerable, adolescent brains.

Day 2: Canadian sports organizations currently manage concussions through a patchwork of policies — or, in some cases, none at all.

Day 3: One family’s weeks-long journey from concussion to recovery.

Day 4: Advances in concussion research and treatment — plus columnist Scott Stinson on what Canada needs to do to better protect young athletes.