Noah Duncan (right), Naval Hospital Jacksonville, Florida's, traumatic brain injury program manager, and hospitalman Elijah Shaul (left), of NH Jacksonville’s Mental Health Department, discuss with retired Navy Chief Pedro Velez, traumatic brain injury and its associated problems, March 27. TBI is a blow or jolt to the head that disrupts the normal function of the brain. To raise awareness of TBI, the Brain Injury Association of America recognizes National Brain Injury Awareness Month every March. - Noah Duncan (right), Naval Hospital Jacksonville, Florida's, traumatic brain injury program manager, and hospitalman Elijah Shaul (left), of NH Jacksonville’s Mental Health Department, discuss with retired Navy Chief Pedro Velez, traumatic brain injury and its associated problems, March 27. TBI is a blow or jolt to the head that disrupts the normal function of the brain. To raise awareness of TBI, the Brain Injury Association of America recognizes National Brain Injury Awareness Month every March.