The 13 Secrets are the optimal function of the endocrine (hormone) system, including the thyroid and adrenal glands to help to achieve a better quality of life and longevity. The book informs you of the differences between synthetic and natural bio-identical hormone therapy, the different methods of testing the hormones, the different methods of administering hormone replacement, and the many different conditions that can benefit from this approach. Case histories are included to understand the process and expected results. Foreword by David Brownstein, MD. For more information, go to www.drkellymiller.com.