Enter autophagy, an ancient mechanism built into our cells that eliminates toxic materials, initiates fat-burning, and protects cells against stress. Best-known for being triggered by intermittent fasting, the complex process not only slows down the ageing process, but optimises biological function as a whole, staving off all manner of disease – from diabetes to dementia – and affording us the healthy lifespan we never thought possible.

So how can we activate autophagy? It’s as simple as flipping a switch. The Switch unpacks the revolutionary research on the body’s natural process for maintaining health and youthfulness, as well as the “dial” that controls it. Backed by a synthesis of the data, and with a foreword by renowned Harvard geneticists Drs. George Church and David Sinclair, The Switch not only decodes the science of autophagy, but also teaches readers how to control it and benefit from its profound impact.