No one really knows how it works, not even Gary Craig. He admits it freely. It just does. It is based on the energy system of the body. It has been termed a placebo treatment. It works though.. I have used it for almost 4 years now. It works on just about everything and almost everyone. It kicks depression's but. Just go to http://www.emofree.com and look through the articles. It saved me from surgery for bone spurs. My podiatrist had schedualed me to have the tendons on the bottom of my feet cut so I could walk without a walker. I just tapped for the bone spurs as an act of desperation and was shocked when it worked. That was in January of 2002. I haven't had any problems since. For depression, I personally just set up a daily tapping routine of 10 rounds on "these problems" and let my subconsious decide what it wanted to work on. It took about 3 months of doing it daily for changes to be seen. I actually laughed for the first time in 10 years. Just try it. It's free and only costs your time. You don't even have to believe in it. It's not a faith healing, or positive thinking routine.