Sport and concussion injuries

Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs.In today’s programme: What should we make of claims that China is building super weapons to hack and hijack US satellites? We also hear from the couple who have discovered one of the world's most important fossil deposits, almost on our own doorstep!Plus ... we investigate the link between sport and concussion injuries.New episodes released weekly. If you're in the UK, for more BBC podcasts listen on BBC Sounds: bbc.in/3UjecF5