Manipulation for Headaches.
A study that included 130 individuals compared cervical and thoracic manipulation to mobilization and exercise for the treatment of cervicogenic headaches (headaches caused by cervical dysfunction). The results of the study revealed that six-to-eight sessions of cervical and thoracic manipulation provided greater reductions in headache intensity, frequency, and duration than a course of treatment involving only mobilization and exercise. The authors of the study add that the benefits of manipulation persisted when the patients were re-examined three months later.
BMC Musculoskeletal Disorders, February 2016