Aging is a privilege, and far more of it is within your control than most people realize. In How to Live a Longer, Healthier Life, WHAT REALLY MATTERS. nephrologist and internal medicine physician Steven Rosansky, MD, draws on more than four decades of clinical experience to separate what genuinely extends healthy life from the noise of supplements, fad diets, and unproven anti-aging therapies that dominate today's wellness market. The book is organized in three sections. The first covers the lifestyle interventions with the strongest evidence for extending lifespan and health span: exercise, the Mediterranean diet, blood pressure and cholesterol control, brain health, the reversal of type 2 diabetes, and cancer prevention. The second takes a system-by-system tour of the aging body - muscles and bones, skin, hormones, eyes and ears, the gut, kidneys, immune function, and lungs - explaining what changes are inevitable, which are preventable, and what the evidence actually shows about managing each one. The third section addresses mental health in aging, evaluates the experimental therapies and supplements being marketed as longevity breakthroughs, and looks at how artificial intelligence is beginning to reshape medicine. Written in plain language and grounded in current clinical evidence, the book respects the reader's intelligence and time. Dr. Rosansky's goal is to help readers ask better questions, make more informed decisions, and push back against treatments that are expensive, unproven, or unnecessarily risky - and ultimately to add not just years to life, but healthy, functional years to those years.

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