Dr John Briffa BSc (Hons) MB BS (Lond) is a medical doctor, author, facilitator, coach and keynote speaker. He is an expert in the optimisation of wellbeing, performance, resilience and sustainability.

Dr Briffa is a prize-winning graduate of University College London School of Medicine (1990), and also holds a BSc degree in Biomedical Sciences (1987).

Dr Briffa works with businesses and organisations internationally to support individual and organisational wellbeing and sustainability. Clients include Deloitte, PwC, the Irish Management Institute, Mastercard, FirstGroup, M&G, HSBC, Barclays, Allen & Overy, Stephenson Harwood, Gowing WLG, Costain, Riot Games, Tesco, Breedon Group, the BBC, Korn Ferry, Bristol University, Aveva, Starr Underwriting, the Investment Association, and Schroders.

Dr Briffa is renowned for his ability to demystify complex research-based data across a wide range of disciplines including neurobiology, psychology, physiology, nutrition, sleep, physical activity and breathing. He specialises in converting scientific data into practical, sustainable strategies to support individuals' ability to live and work healthily, successfully and sustainably.

Dr Briffa is a widely-published journalist and has contributed more than 700 articles and columns to mainstream newspapers and magazines including The Times, The Observer, Reader's Digest, an Men's Health. He is the author of 10 books, including Waist Disposal (Hay House), Escape the Diet Trap (HarperCollins), A Great Day at the Office (HarperCollins) and Working Well - the Science of Healthy High Performance.