Most people with a traumatic brain injury recover quickly and fully but, for some people, symptoms can last for days, weeks or longer. In severe cases, it can lead to coma and even death.
A former NFL tackle who used to spend hours on the practice field, now considers it a good day if he can spend a few hours out in the yard.
A North Texas boy’s running, jumping and riding have improved all thanks to a device the size of an iPod.
A large study in older veterans raises fresh concern about mild brain injuries that hundreds of thousands of troops have suffered from explosions in recent wars.