The premier voice of natural wellness presents a new guide to staying healthier longer. Null explores a subject which is becoming a major concern: antioxidants vs. free radicals. After discussing the role of antioxidants in improved immune system functioning, Null lays out an effective program for controlling free radicals through diet and vitamin therapy. Gary Null (1945-present) is an American author and radio personality. His focus is on alternative and complementary medicine and nutrition.