Naomi Whittel is a CNC-certified nutritional consultant who has travelled the world exploring the purest health-promoting ingredients, meeting experts - including GPs, dermatologists, sleep doctors, nutritionists and physiologists - and developing her own everyday autophagy-enhancing practices. Based on this extensive research, her easy-to-follow programme features simple steps, more than 50 recipes and exercises you can do at home to get glowing.

Dr Sanjay Gupta is the multiple Emmy Award-winning chief medical correspondent for CNN. Gupta, a practising neurosurgeon, serves as Associate Chief of the neurosurgery service at Grady Memorial Hospital in Atlanta, Georgia, and as Assistant Professor of Neurosurgery at the Emory University School of Medicine.