@drjoedamiani: Tension headaches can be caused by overactivity of the muscles of the upper back and neck, and also by existing in a sympathetic state. Diaphragmatic breathing reduces the load on the muscles of the neck and upper back, as well as stimulate the vagus nerve which activate your parasympathetic system, and creates relaxation… Try this throughout the day! #DiaphragmaticBreathing #Headaches #TensionHeadache #headacherelief #vagusnerve #vagusnervestimulation