The Energy Within

Your body is the most sophisticated performance system on the planet. The Energy Within teaches you how it works-and how to make it work better.

The second book in the HaKi Energy Trilogy goes inside the athlete and maps the biological energy systems that power every aspect of hockey performance. Created by Pierre DeBar-a performance coach with 25 years of experience working with elite athletes across the NHL, NFL, NBA, MLS, and the Olympics-this book translates cutting-edge sports science, neuroscience, and performance biology into language any player can understand and immediately apply.

Discover why a 45-second hockey shift is perfectly calibrated to your body's fuel systems. Learn why "muscle memory" is a myth-and what's actually happening in your neural pathways when you practice. Understand how your thoughts change your blood chemistry in real time, why the stress response before a big game is actually performance fuel that's been mislabeled, and why your heart sends more signals to your brain than your brain sends to your heart.

Each chapter opens with a concrete hockey moment, explains the biology behind it, connects it to the HaKi Energy System's twelve principles, and closes with a practical "Try This" exercise. Topics include metabolic energy systems, the autonomic nervous system, neural pathway development, nutrition and hydration, attentional science, the neuroscience of self-talk, heart-brain coherence, stress transformation, recovery science, and neuroplasticity.

Written for hockey players ages 14 and up, parents seeking to understand the science of youth athlete development, and coaches who want evidence-based tools for building better players. Accessible, conversational, and grounded in real science-The Energy Within turns biology into a competitive advantage.