Post-concussion syndrome
Post-concussion syndrome, also known as postconcussive syndrome or PCS, is a set of symptoms that may continue for weeks, months, or a year or more after a concussion – a mild form of traumatic brain injury (TBI). The rates of PCS vary, but most studies report that about 15% of individuals with a history of a single concussion develop persistent symptoms associated with the injury. A diagnosis may be made when symptoms resulting from concussion last for more than three months after the injury. Loss of consciousness is not required for a diagnosis of concussion or post-concussion syndrome.
Harry Carson
Harry Carson authored his second book "Captain for Life" published by St. Martin's Press in 2011. In his book he documents his experiences with Post Concussion Syndrome. He was one of the first former professional athletes to share his own personal first hand experiences years before the long term effects of concussions and chronic traumatic encephalopathy (CTE), long before the subject became a "hot button" topic.