Losing weight isn’t a matter of willpower; it’s a matter of hormones. In this overview, Smythe-Rivers introduces you to the reasons high dietary glucose, lack of movement, prolonged stress, and sleep deprivation are so dangerously incompatible with our evolutionary history as humans. This short guide is a concise outline of the current science and research in diabetes prevention that gives you the information you need to reverse insulin resistance and therefore reverse prediabetes and diabetes. In this brief introduction, Smythe-Rivers helps you understand why high blood sugar, high blood pressure, insulin resistance, high cholesterol, and weight gain often occur together (metabolic syndrome). Smythe-Rivers succinctly shows you why improving insulin sensitivity enables you to lose weight, lower high blood pressure, bring high cholesterol down. This brief introduction provides the framework you need for addressing 5 serious medical issues by doing one thing: controlling blood sugar. Finally, this short guide also provides a quick introduction to the A1C test and its limitations as well as the ideal A1C goal.