Whiplash is an injury to the soft tissues of the neck from a sudden jerking or "whipping" of the head. This type of motion strains the muscles and ligaments of the neck beyond their normal range of motion.
When a vehicle stops suddenly in a crash or is hit from behind, the seat belt will keep a person's body from being thrown forward. But the head may snap forward, then backward, causing a whiplash injury.
In addition to car accidents, whiplash can be caused by roller coasters and other amusement park rides, sports injuries, or being punched or shaken. (Whiplash is one of the hallmarks of