Jerry credits his smashed bike helmet with saving his life. He describes waking up in an ambulance, and spending a day in the ER. But it was a full nine months after his bike crash that Jerry was finally diagnosed with a traumatic brain injury. Jerry, a long-time cyclist, describes how his physical injuries masked his brain injury. Little by little, his reality completely changed. Serious brain injuries are not always obvious. Jerry’s story is a peek into the reality of a TBI.     There is an old saying:  no surgery is minor if it is happening to YOU. The same is true for mild traumatic brain injuries. Understanding mild traumatic brain injuries