Do you have neck and shoulder pain in addition to pain in your temporomandibular joint? A recent study in the Clinical Journal of Pain (Vol. 28, 2012, pgs 55-64) offers a possible explanation for this condition. In this study, muscle activity was analyzed electromyographically in healthy controls, patients with myogenous (muscle) TMD and those with mixed (muscle and joint) TMD while performing a muscle endurance test. The results showed that the cervical muscles fatigued more quickly in the TMD patients than in the control subjects. Thus, such patients may develop neck and shoulder pain more easily than normal persons.