Show Details With additional experts, we further explore non-toxic and non-invasive therapies to prevent or reverse Cancer. Included are scientifically proven herbs and supplements, immune augmentative therapy, antineoplastins, detoxification, aids, expert nutritional guidance, natural stress reduction techniques, self-healing practices and many other approaches. Gary Null, Ph.D., is a New York Times best-selling author, the host of the talk radio program, "The Gary Null Show", and a producer of documentary films, PBS television programs, and health and personal development videos.