# 21 - Lipids Part 1: Metabolic Trafficking using Cars and Boats
Lipid (cholesterol) physiology is complicated, but essential for you to understand as part of metabolism, health, and longevity. Let's simplify lipids (and glucose) using cars, boats, and traffic. This sets the foundation for future episodes where I discuss the practical implications of lipids and heart disease risk. We'll discuss the following:
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