This booklet is collection of questions for each secondary stressor category avilable for scanning in the Zyto Elite & Visera Link scanning software types. This includes all of the environmental stressors like bacteria, heavy metals, water contaminants etc; as well as all of the secondary stressor categories generally considered helpful such as electrolytes, probiotic bacteria, vitamins, etc. These questions are extremely comprehensive, to help you determine reasons for out of range responses & get to the root. The purchase of this booklet includes a detailed video on how to use it. This is a physical booklet that you will receive in the mail.