The Breathing Expert: Mouth Breathing Linked To ADHD, Diabetes & Child Sickness!

In this episode, Steven Bartlett interviews James Nestor, an award-winning science journalist and author, about the profound impact of breathing on human health. Nestor shares his mission to revolutionize how people understand and practice breathing as a fundamental pillar of wellness. Throughout the conversation, he explains how modern humans have developed dysfunctional breathing patterns that contribute to numerous health problems including ADHD, diabetes, and chronic illness in children. Nestor describes a groundbreaking personal experiment where he and researchers deliberately obstructed nasal breathing for extended periods and documented the dramatic negative effects on sleep quality, cardiovascular function, and overall health markers. This research highlighted just how crucial nasal breathing is compared to mouth breathing. The discussion explores why humans even have the capacity to breathe through their mouths despite the significant health disadvantages, touching on evolutionary trade-offs and modern lifestyle factors. Nestor emphasizes how children are particularly vulnerable to developing improper breathing habits due to factors like allergies, poor air quality, and architectural changes in modern living spaces. He reveals that breathing efficiency and CO2 tolerance are surprisingly accurate indicators of longevity, often more reliable than traditional fitness metrics. The episode covers practical strategies for correcting mouth breathing habits and implementing effective breathwork routines that can be integrated into daily life. Nestor discusses how psychological stress and anxiety directly impact breathing patterns, creating a bidirectional relationship where poor breathing exacerbates mental health issues. He addresses common misconceptions about face masks and their potential role in perpetuating improper breathing mechanics. The conversation includes a segment on indoor air quality and how CO2 levels in poorly ventilated spaces may gradually harm health. A practical morning routine is presented for monitoring personal health levels through breathing assessment. Nestor explains science-backed methods for reversing asthma through proper breathing techniques and discusses the remarkable benefits of breathwork for patients suffering from Long COVID. The episode concludes with practical tips for eliminating mouth breathing habits and explores the life-changing potential of mastering proper breathing techniques. Throughout, Nestor combines personal anecdotes with rigorous scientific evidence to make the case that breathing deserves far more attention in health and wellness conversations.