Headaches are a common and everyday complaint that people suffer from and are one of the most common locations of pain in the body. Often those that experience headaches put it down to stress or a bad day at the office. This however is not always the case. Headaches are usually caused by poor posture, muscular tension or imbalance or joint dysfunction. When this happens the neck and upper spine are likely to stiffen up causing tightness and affecting the nerves in the back of the head. This tends to refer pain into the head and often into the forehead causing headaches.