The main takeaway from this question is that after 25 years of treating patients with the common issue of neck pain, it appears that most individuals often cause more harm than benefit when trying to stretch their neck muscles. What Causes Neck Stiffness To Begin With? All tissue in the body can become stiffer when not used to its full and normal capacity. Simply, if we don't use it we lose it. The neck consists of seven cervical vertebrae, which are linked by discs, ligament