Whiplash was the common term back in the day for any type of injury of the neck involving its acceleration, followed immediately by deceleration. Of course, this term was often associated with malingering (faking an illness to escape work) due to the difficulty of really quantifying the extent of the injury for most cases. The term was later changed to Whiplash Associated Disorders (WADs) when studies emerged that proved the prevalence of WADs was large, regardless of whether each case could be picked up by scans such as MRI and X-ray or not. Other signs and symptoms that motor vehicle accident patients experienced, like cervicogenic headaches which are headaches that start from the neck and move to the head, are beginning to be used more commonly now to help diagnose WADs. Speak to a personal trainer in Mississauga for more details about how to adjust your head rest.