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Concussion or mild traumatic brain injury (MTBI) following motor vehicle accidents or sports-related injuries comprise 70% to 90% of all TBI. Majority of patients usually recover from the subjective symptoms within 3 months of the concussion. However, in 10% to 20% of patients, the constellation of symptoms in cognitive (difficulties in concentration and memory), physical (fatigue, headaches, dizziness), and emotional (irritability, anxiety) domains may persist for weeks, months, and even years after MTBI. 1 This is known as postconcussion syndrome (PCS) and the true incidence is not known due to lack of clear diagnostic criteria and high attrition rates during the followup. 2 Among the symptoms of PCS, cognitive complaints are noted to be most common. 3 A recent study investigating the long-term effects of MTBI showed that cognition was significantly impaired in MTBI patients with persistent PCS compared with …