Nutrition researcher and NYTimes bestselling author Neal Barnard, MD, joins The Mountain Life. His new book,Your Body In Balance,demonstrates how foods affect our hormones—and our health. Dr. Barnard shares the science behind how common conditions—like infertility, weight gain, menopausal symptoms, breast and prostate cancers, thyroid problems, and acne—are fueled by hormones that are hidden in or influenced by the foods we eat. Dr. Barnard is a faculty member of the George Washington University School of Medicine and is president of the Physicians Committee for Responsible Medicine.