You may practice this exercise sitting up or lying down. Start by making yourself as comfortable as possible. Loosen any tight clothing, remove your shoes if you like. Keep your arms and legs relaxed, hands and feet resting naturally.
Breathing is done naturally from the moment we are born, to supply the body with oxygen and rid the body of carbon dioxide. It can create feelings of calm and relaxation when breathing is deep and steady.
Research has demonstrated that relaxation techniques such as diaphragmatic breathing, progressive muscle relaxation, visual imagery and meditation can help people who experience headache and other chronic illnesses.