'Read this and add at least a fortnight to your life.' – Jeremy Vine 'Real, down-to-earth and urgently needed.' – Oliver Burkeman Why do we feel stress? And how can we change things? Stress Tested is a pioneering collaboration between leading researcher Richard Mackenzie and journalist Peter Walker. Investigating the science of stress hormones, real-life case studies, the history of stress, societal factors and how they interact with stress, Mackenzie and Walker explain exactly how stress works, and what we can do to mitigate its long-term health impact. This is the book exploring the nuances of stress and how it affects you. You’ll learn how stress impacts and interacts with: * Your hormones * Weight * Type 2 diabetes * Your work and socio-economic status * Fertility and pregnancyIt is packed with conversation-starting science and stories. Did you know that low-carb diets can increase cortisol levels, as can HIIT exercise, causing insulin and glucose surges? The opposite of what we