Every 21 Seconds, one person in the U.S. sustains a Traumatic Brain Injury   An estimated 5.3 Million Americans - a little more than 2 percent of the U.S. population - currently live with disabilities resulting from Traumatic Brain Injury.   1.5 Million Americans sustain a Traumatic Brain Injury each year.   More than 50,000 people die every year as a result of TBI.