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This is the over-view audio of this article. Make sure to play it and read it(AI audio) Chapter 1. Introduction: Insulin, the Master Key to Blood Sugar Control In the modern health landscape, diabetes has become more than just a disease; it's a global phenomenon. Many people understand diabetes through a simplistic formula: excessive consumption of sugar or carbohydrates. However, this is merely the final outcome of a complex metabolic process and fails to explain the core of the problem. Beneath the surface of Type 2 diabetes lies a massive, underlying systemic collapse that develops silently over many years: 'Insulin Resistance.' This article aims to move beyond the stereotype of 'sugar = diabetes' and provide an in-depth analysis of why insulin resistance is the starting point and central link in modern metabolic diseases. 1.1. Glucose: Our Body's Energy Currency For every cell in our body to function, it needs energy, and the most fundamental energy source i...