Any part of the neck such as muscles, bones, joints, tendons or nerves getting affected can cause neck injury. Sometimes pain in the shoulder, jaw, head or upper arm can also cause muscle strain. Usually muscle strain occurs more when a person works sitting in front of a computer for a long time.
Sometimes sleeping in the wrong posture can also cause neck strain or not taking precautions during exercise can increase the risk of muscle strain. Apart from this, neck injury can also occur due to car accidents, fall or other reasons.
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