Book excerpt: A scientist reveals the groundbreaking evidence linking many major diseases, including cancer, diabetes, and Alzheimer's disease, to a common root cause—insulin resistance—and shares an easy, effective plan to reverse and prevent it. We are sick. Around the world, we struggle with diseases that were once considered rare. Cancer, heart disease, Alzheimer's disease, and diabetes affect millions each year; many people are also struggling with hypertension, weight gain, fatty liver, dementia, low testosterone, menstrual irregularities and infertility, and more. We treat the symptoms, not realizing that all of these diseases and disorders have something in common. Each of them is caused or made worse by a condition known as insulin resistance. And you might have it. Odds are you do—over half of all adults in the United States are insulin resistant, with most other countries either worse or not far behind. In Why We Get Sick, internationally renowned scientist and pathophysiology professor Benjamin Bikman explores why insulin resistance has become so prevalent and why it matters. Unless we recognize it and take steps to reverse the trend, major chronic diseases will be even more widespread. But reversing insulin resistance is possible, and Bikman offers an evidence-based plan to stop and prevent it, with helpful food lists, meal suggestions, easy exercise principles, and more. Full of surprising research and practical advice, Why We Get Sick will help you to take control of your health.