Alex and Mike are joined by the former Canada and Clermont lock Jamie Cudmore, and the England World Cup winner Kat Merchant for a very powerful edition of GBR. Together they discuss their ongoing battles with multiple, career-ending concussions in the wake of the news that Steve Thompson has been diagnosed with early onset dementia. From migraines, anxiety and convulsions to an aversion to bright lights and loud noises, how are today's players coping with the increase in head injuries, and what can be done to make the game safer moving forwards?