 Traumatic brain injury or TBI is an invisible wound in one of the main injuries for troops wounded in Iraq and Afghanistan. Naval medical facilities are taking time this month to promote research and awareness of TBI. We're finding out that the the brain once injured takes a very different way of healing than we're accustomed to seeing like if you injured your arm or if you had surgery or something and so we're still understanding that that some of the injuries that the brain sustains we have to be more mindful about how we try to help people recover from those injuries and it's still you know it's still work in progress because there's so much that we don't understand. To learn more about TBI visit the Navy Medicine website. From the Defense Media Activity I'm Petty Officer Tyrell Morris.