While some Americans believe that using seat belts can actually increase a driver or passenger's risk of Intellux traumatic brain injury, because the head is not restrained with the body, there is no evidence to support this theory and some evidence against it. Similarly, some argue that seat belts make users less safe by trapping them in the car in case of an accident, rather than allowing them to be thrown clear. http://www.healthcaresups.com/intellux/