The scientific reality is that 90 per cent of the signs of ageing and disease are caused by lifestyle choices, not your genes. In other words, you have the capability to overcome and transform your genetic history and tendencies. Harvard/MIT-trained physician Sara Gottfried, M.D. has created a revolutionary 7-week programme that empowers us to make the critical choices necessary to not just look young, but also feel young. Dr. Gottfried identifies and builds this book around the five key factors that lead to accelerated aging: the muscle factor, the brain factor, the hormone factor, the gut factor, and the toxic fat factor. The 7-week program addresses these factors and treats them in an accessible and highly practical protocol. Dr. Gottfried's programme makes it possible to change the way you age, stay younger longer, and remain healthy and vibrant for all of your days.