Bryson seems like a perfectly healthy baby. But soon doctors confirm his parents’ worst fears: something is wrong with Bryson’s brain. Despite dozens of tests over nearly a decade, doctors come up empty in their efforts to find a diagnosis.Then one day, everything changes. Scientists working at the cutting edge of genetics believe they know what's causing Bryson's disease — and think it could be reversed. Here’s the first episode of the new CBC podcast, Unlocking Bryson’s Brain. More episodes are available at hyperurl.co/unlocking