All chronic disease is a manifestation of various combinations of oxidized biomolecules, and that all toxins inflict their toxicity by causing such oxidation of biomolecules. Join Dr. Levy, leading pioneer in vitamin C, and understand the pivotal role of increased intracellular oxidative stress (increased IOS) in all diseases, what the most common sources of ongoing oxidative stress in the body are, the principles of sound supplementation, and the role of vitamin C as a foundational supplement for maintaining and regaining good health.