Dr. Lawson uses kinesiology or muscle response testing to talk to your body. Your body knows what is wrong and why it is sick. Essentially and simply put, everything outside your body is either "strengthening" or "weakening" to your body. A fresh organic carrot probably strengthens your body , while a candy bar probably weakens it. It's really that simple. Electromagnetic frequency, like from your computer, will weaken you, as does air pollution and toxic heavy metals in work environments and prescription drugs.
When Dr. Lawson muscle tests you it may look like magic if you've never seen it before but it's really simple physics.
Kinesiology has been around and successfully used in the healing arts for hundreds, possibly thousands of years. In the same way our bodies know when and where a cut is to be healed, or how to secrete just the right amount of digestive juices to break down and assimilate our food, our body knows what is wrong with it and what it needs to fix the problem.
Based on the concept of internal energy fundamental to traditional Chinese medicine, muscle-testing is a non-invasive way of evaluating the body's imbalances and assessing it's needs.