There are over 70,000 chemicals commercially produced in the United States. The long-term effects of many of these chemicals have never been investigated. But many chemicals are harmful in very low doses. Unless generated by the body (formaldehyde, pentane), the body's level for chemicals should be non-detectable, and not "low level". Chemicals are widespread in our environment, and constant exposure to low levels can cause dysfunction in many systems of the body. The purpose of the following questions is to determine if any of your health problems can be a result of chemical toxicity and to measure your TOTAL TOXIN LOAD.