At one time or another we've all experienced throbbing or stabbing pains in our heads. Because the head controls the rest of the body, nothing else can get your attention quite so immediately or completely. If there were only one cause of headaches the treatment would be a lot easier. However, headaches come in many different shapes and sizes, and the causes can be equally complex. There is no one simple answer. Headaches can be triggered by physical or emotional stress, toxic fumes, certain foods, preservatives, alcohol, bright light, trauma, hormonal changes, too much or too little sleep, allergies, or blood pressure to name just a few causes. Another frequently overlooked cause of headaches is misaligned spinal bones in the neck and upper back. When spinal bones lose their normal position and motion, delicate nerves and blood vessels to the head can be affected. One thing is certain. A recurring headache is a sign that something is wrong. While pain relievers like aspirin may temporarily ease discomfort, they also mask the symptoms. They do nothing to correct the source of the problem. And while the problem remains, the headaches will come back...again and again.