Headaches can result from a variety of causes, including spinal and cranial misalignments, food allergies, chemical sensitivities, stress/anxiety, hormonal imbalances, toxicity (various kinds), poor diet, nutritional deficiencies, TMJ, hypertension, sinus congestion, and leaky gut syndrome.
Imbalances in any of the 8 areas of a holistic approach contribute to headaches. Properly balancing these areas gives us great success. Very often, simply correcting structural imbalances, such as tight neck muscles or cranial faults is all that is necessary to eliminate headaches.