Dr Sarah Myhill is a British medical doctor, author and lecturer with more than four decades of experience in medicine and a particular interest in chronic fatigue, energy metabolism, mitochondrial function, nutrition and Ecological Medicine. She qualified with Honours from Middlesex Hospital Medical School in London in 1981 and subsequently spent around 20 years working as an NHS GP before moving into independent medical practice. 

Her clinical approach has focused on exploring the underlying mechanisms that may contribute to chronic illness rather than looking only at symptoms in isolation. Over many years, she has developed a particular interest in ME/CFS and the relationship between mitochondrial function and energy production, an area that has also formed part of her published research. In 2009, she co-authored a paper examining chronic fatigue syndrome and mitochondrial dysfunction, followed by further work exploring mitochondrial dysfunction and clinical approaches to ME/CFS. 

Dr Myhill has been involved with the British Society for Ecological Medicine (BSEM) since the 1980s, including serving in senior organisational roles and contributing to the education of doctors and other health professionals interested in Ecological Medicine. Her work in this field places particular emphasis on areas such as nutrition, environmental exposures, metabolic health and identifying factors that may contribute to the development or persistence of chronic disease. 

Alongside her clinical and research work, Dr Myhill is a prolific author and educator. Her books include Diagnosis and Treatment of Chronic Fatigue Syndrome and Myalgic Encephalitis: It’s Mitochondria, Not Hypochondria, which explores the role of mitochondria in cellular energy production and her approach to understanding ME/CFS, as well as Ecological Medicine: The Antidote to Big Pharma, co-authored with Craig Robinson. 

Throughout her career, she has lectured extensively to doctors, nutrition professionals and other healthcare practitioners, helping to bring greater attention to the connections between cellular energy, nutrition, environmental factors and chronic illness. Her work encourages practitioners to look beyond a single diagnosis and consider the wider physiological and environmental context in which health problems develop.

For NUTRIBE, Dr Myhill brings a particularly valuable perspective on energy and mitochondrial health, connecting biochemical mechanisms with decades of clinical experience in complex and chronic conditions. Her contribution offers practitioners an opportunity to explore how energy is produced at a cellular level, what can disrupt that process, and why mitochondrial function has become such an important area of discussion in nutritional and integrative healthcare.