Live stronger for longer with insight from The Lazarus Strategy, part how-to manual, part manifesto. This guide to the art of healthy ageing can help readers along the path to a more active, productive, independent future.

We are all living longer. There are already more than 8 billion people on the planet, and by 2050, two billion of us will be over the age of 60, and around 434 million over 80, according to the World Health Organisation.

But what will those extra years of life bring? Many of us will end up spending our final decades struggling with chronic diseases and depending on non-curative drugs and health carers – not the sprightly old age that most of us would wish for.

Dr Norman Lazarus, 87, is an exception. As an expert on the physiology of healthy human ageing, he is living proof that our later years can be lived well. Even as an octogenarian, Dr Lazarus continues to lead an active lifestyle free of medication, with regular walking and cycling.

The Lazarus Strategy builds on his many years of physiological research to reveal the path to a more active, productive, independent future life free of medication. This remarkable book shows how the different lifestyle choices we make now will determine our experience of ageing through our golden years – and how fast.

There are three key ingredients for a healthier old age: physical activity, food and the mind. Norman explains how each of these affects the ageing process, and how to change your life from the age of 50 and beyond, to stay well for longer.