After 30 years of suffering migraines that would make me throw up from the pain and put me in bed in a dark room, miss work and pray to God to make it stop... a friend of my gave me this book. They recommended their pain clinic that I couldn't afford. But they also described the blood tests that they would start with to determine imbalances routine blood tests would not find. It sounded too simple, but I took the book to my family doctor who was going to retire in a few months. He had been my doctor for many years and knew me well. I asked him if we could run the tests recommended. His words were, "Why not? It can't hurt." They were extensive tests, but the results came back with some marked imbalances that would have never shown up on regular blood panel testing. For one thing my body was producing so much DHEA I was marked as a cardiac risk. We had no idea. The book gave simple instructions as to how to lower too much DHEA in your system. I also stopped hormone replacement therapy. I haven't had a migraine for 8 years. As God as my witness... you must be proactive and don't give up. There are answers out there. Doctors tend to follow their training and list of common tests. This is no ordinary book. It worked for me. It may not work for you. You need a doctor that will be willing to work with you. Because a friend gave me the book...and she had been given the book...I decided to give the book away to someone I felt needed it. It worked for me.