Neck pain is very common, with 30% of adults in the US will experience neck pain in any given year. It can be caused by many different things, including weak and overused neck muscles, wear and tear on the cervical spine, whiplash, and more. Any shift in the spine such as poor posture or muscle imbalance can significantly affect the surrounding muscle, and often the trapezius muscle is affected. The upper trapezius is a complex muscle in that the muscle crosses over a dozen joints. Shortening of any one of the joints will involuntarily contract the upper trapezius and can produce knots and pain.