The mucosal membranes that cover our skin, sinuses, airways, digestive tracts and many other tissues are critical to our health. Not only do they help protect our bodies from intruders and environmental toxins: They also provide many other critical functions including enabling us to digest our foods and allowing us to breathe. As a result, faulty or damaged mucosal membranes provide the root for many serious health conditions, including allergies, asthma, COPD, GERD and others. The author illustrates the science behind our mucosal membranes with clarity: how they are involved in disease, how they can become damaged, and what we can do to repair them and keep them healthy. Please note that unlike many published books, reviews for this book are not paid-for, sought after with quid quo pro nor otherwise induced by the publisher or author. Any review - though very appreciated - has been given voluntarily. HOW TO READ THIS BOOK You now have in front of you one of the most comprehensive investigations regarding this topic from a natural perspective. This investigation involved a deep dive into the scientific research combined with clinical experience and a background in traditional medicines of the world. Scientific studies that were accepted and utilized in this investigation were peer-reviewed and published in prestigious scientific journals. A careful analysis of each study and its application to practical knowledge was conducted in order for the research to be included in this investigation.   This contrasts to many natural health texts today that propound various unproven and anecdotal techniques and strategies. But unfortunately, it can also replace some of the good-feel stories that can accompany anecdotal information.   This book was put together to provide the conclusions of this investigation in two layers. The first layer contains a general conclusion and practical understanding of the research. This is typically found in an introductory paragraph or two at the beginning of each topic and often also at the very end of that topic. Underneath and between these are the specific scientific studies that prove that general thesis offered.   These scientific studies have been curated and simplified to the extent possible to explain their usefulness and application. But at the same time, the information can become tedious for the average reader.   Therefore, if you are not that interested in reading the details of all the research, I would advise you to read the introduction and conclusion to each topic, and simply skim through the scientific research. If you decide you want to know more about this particular area, you can wade through the details of the research. Otherwise, you can glean an understanding of this topic in a fraction of the time and leave the remainder for reference.   Near the end of the book you will also find some concluding remarks about this information. This could be useful to understand the overarching messages of the text. ABOUT THE AUTHOR: The author is a California Naturopath and holds a Ph.D. in Natural Health Sciences. He is a board-certified Alternative Medical Practitioner and his books are focused upon science-based natural health solutions.