Dr. Castellano knows that after 30, your body doesn’t work like it did when it was young. The U.S. Centers for Disease Control and Prevention reports that genetics accounts for 18% of an individual’s state of health. That means that you have direct control of about 80% of your health. How you look and feel is strictly up to you. If you are tired of being stressed and fatigue, we have programs that will help you function, feel, and look your best.