Yes. Tennessee has taken the important step of requiring helmets on bikers. Even the most experienced bikers crash, and when they do, helmets protect their heads and save lives. It is essential to wear a DOT approved helmet every time you ride. Decorative helmets are often more dangerous than wearing no helmet at all. In addition, three-quarters (open face) helmets should be avoided because they leave the face exposed. The face is the part of the head most likely to hit the pavement. While you can still sue if you were injured while not wearing a helmet, you may collect a smaller amount of damages.