Every year 1.5 million people in the United States are treated for a traumatic brain injury. That is one person every 15 seconds! Now doctors and researchers believe they have found a new treatment for TBI in the "female" hormone Progesterone. To read the full article, "Progesterone May Be New Treatment For TBI," click here.Learn more on Traumatic Brain Injuries!Read our article "Traumatic Brain Injuries."Read "Seven Ways to Prevent TBIs."