THE TOP 3 CAUSES OF HEADACHES Bottom Line: A variety of factors can cause headaches. The good news is that many of these are lifestyle factors and habits and patterns that you can control. By understanding a few of the most common causes of headaches, you will have the information you need to make those key changes and to get on your way to finding lasting relief! Ironically, one of the most common causes of headaches is over medicating. In fact, overuse of many over the counter medications is a leading factor in a rebound headache, which is why pills may not be the best option for care. Many tension headaches get their start with repetitive motion and poor posture while sitting or standing at work or performing repetitive motions. Keeping your shoulders back and your spine in proper alignment throughout the day can help prevent future episodes. And finally, most of the good stuff like coffee, cheese, alcohol and meats have substances that can cause headaches. You do...