Paul Sebastien, a top exec in Silicon Valley, shares how he lost 40 pounds, gained muscle, and became a semi-pro tennis player. They discuss low-carb approach, cold thermogenesis, kettlebells, weight-bearing exercises, and biohacking as strategies for fitness. They also cover injury prevention, compound movements, protein dinners, and car backloading. Additionally, they talk about foam rolling, stress management, yoga, and meditation, emphasizing the importance of making daily routine changes for better health.