INTEGRATIVE IMMUNITY HEALTH SYSTEM, KNOWN AS I-IHS (pronounced I.H.S) is a new healthcare model (system) that studies the interrelationships, communication or miscommunication between the immune system and the endocrine system that account for more than ninety percent of all chronic diseases seen worldwide. I-IHS focuses on uncovering the root causes of 21st century conditions seen in clinics around the globe. AT I-IHS YOU WILL UNCOVER THE ROOTS OF THE 21ST CENTURY EPIDEMIC TETRAD: ESTROGEN-OBESITY-ALLERGY-ANXIETY/DEPRESSION EPIDEMICS THAT LEAD TO SIGNS AND SYMPTOMS TREATED BY HEALTHCARE PRACTITIONERS WORLDWIDE.