ENCORE: Immunity, Part 1

Thomas Guilliams, Ph.D., author of “Supporting Immune Function: A Lifestyle and Nutrition Approach,” weighs in on lifestyle factors that influence immunity: sleep, stress, diet, and exercise. He also enumerates herbs, probiotics, vitamins and minerals that target the immune system–from Astragalus to zinc. What to take for a cold? Can too many “immune boosters” be harmful? Can nutrients boost the efficacy of vaccines? Click HERE for part 2.