Breathe Happy: Optimize Your Sleep, Looks, and Health Paperback – April 2, 2026

We are living in an epidemic of mouth breathing, sleep apnea, and weak jawlines because orthodontists and the medical community have been getting airway health wrong for decades. Millions of people struggle with fatigue, snoring and teeth clenching, without ever realizing they have a correctable problem.This groundbreaking book helps you identify what is blocking your breathing and walks you through how to fix it. It also empowers you as a parent to successfully navigate everyday choices without causing your children irreparable structural damage. Dr. Coral Tieu is an Ear, Nose, and Throat surgeon whose mission is to empower readers to prevent harm to their faces and sleep. She knows firsthand the power of nasal breathing, as well as the impact of everyday choices on our energy, jaw health, and facial development.In This Book, You’ll Discover:The silent threat stealing your energy and degrading your looksHow to protect your child from common sources of facial deformationCauses of mouth breathing, snoring, and sleep apneaMethods to improve your sleep immediately and for lifeHow to get the sculpted jawline you’ve always wantedWhy you want to harness the power of nasal breathingHow to save your child from a lifetime of breathing problemsThe amazing health-giving benefits of nitric oxide“Over the past decade, growing clinical evidence and surgical innovation have significantly advanced airway-centered medicine within ENT. Concepts surrounding nasal breathing, tongue mobility, and craniofacial development, once debated, are now supported by an expanding body of research. This book thoughtfully synthesizes those principles for a broader audience and contributes meaningfully to the continued advancement of the field.”— Soroush Zaghi, MDOtolaryngology (ENT) - Sleep SurgeonCo-Founder and Medical Director, The Breathe Institute“ Breathe Happy connects the dots between airway, facial growth, and sleep in a way that helps readers truly understand what has been overlooked—and guides them toward practical, meaningful change “— Audrey Yoon, DDSProfessor of Sleep Medicine, Stanford University"This book does an exceptional job of clarifying the science in a way that is both accessible and deeply evidence-based. It challenges long-held assumptions, dispels common myths, and provides practical guidance that empowers parents to make informed decisions during a critical window of growth. Beyond its relevance for parents, this book is valuable for anyone curious about their own ability to breathe and sleep in a healthy manner."— Jonnae Ostrom, MDFacial Plastics and Reconstructive SurgeonOrder your copy of Breathe Happy now to start sleeping, looking, and feeling great. Read more