Balance of the bodies' spinal musculatures is controlled by the Reticular activating formation in the brain stem. The upper cervical spine (neck) and the skull work as a unit to protect the brain stem and allow proper balance and motion. Acute, chronic or repetitive strain injuries, improper ergonomics or even improper sleeping can adversely affect this area. Specific upper cervical adjustments made without twisting forces helps align and take tension off the region. Proper alignment of this area allows the body to achieve muscular balance.