An author with a reckless past set his fiction aside to tackle a critical mission: Help those around him struggling with head trauma and chart a way forward.But a fateful visit to the doctor upended his entire world... Former fighter and Ivy League football player Mark Tullius wanted to support his friends with traumatic brain injuries (TBI) and chronic traumatic encephalopathy (CTE). But when presented with a scan of his own grey matter, his life...