Neck, spine, and torso are most protected by the head restraint in a vehicle
In addition to obstructing the rear view and providing a pleasant place to rest your head while driving, head restraints, also known as headrests, are crucial for protecting the head and neck in auto accidents and reducing the risk of whiplash. The main purpose of headrests in cars is safety; they're designed to lessen whiplash, a painful consequence of the head and neck moving backward during a rear collision.
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