Human Performance

Caroline Kavanagh | February 3, 2026 After years spent measuring real-time substrate use and glucose responses, one thing is certain: lasting progress isn’t the result of quick fixes or trendy hacks. The real story is about how the body selects fuel, how movement and nutrition interact at a cellular level, and how adaptation emerges gradually—sometimes invisibly—over months and years. Here’s what the data actually reveals. Most people, even during the lightest activities, def

Caroline Kavanagh | January 7, 2026 The start of a new year often brings a surge of motivation and a desire for change. Gym memberships spike, new diets are adopted and supplement shelves are cleared—all with the intention of building better health. Yet, lasting results rarely come from enthusiasm alone. They require a more strategic, informed approach—one rooted in objective data and individualized planning. Pro Tip 1: Establish a Comprehensive Baseline Early Health is much

Caroline Kavanagh | November 26, 2025 Strong muscles, smart fuel, and a bit of grit—she’s not just skiing through the cold, she’s thriving in it. Your body’s response to winter starts long before you hit the slopes. As a sports nutritionist, I’ve seen again and again how the cold affects everyone a little differently—and most of my clients are surprised at just how much biology drives the process. What keeps some people warm when others are reaching for their thickest hoodie?