The Lean By Habit Field Manual (FM2025) is a practical, science-based guide for transforming your body and mind through small, sustainable daily actions. Written from the perspective of a fitness coach, engineer, and former U.S. Army soldier, this field manual rejects gimmicks and motivation-based approaches in favor of proven behavioral science and disciplined execution.

At its core are three pillars: Shrink the Habit, Create a Positive Environment, and Use Habit Triggers. These principles help reduce resistance, build consistency, and automate success by making healthy behaviors easier to start and harder to avoid. Whether you're trying to lose weight, gain strength, or sharpen mental focus, FM2025 offers step-by-step strategies to turn good intentions into reliable routines.

Each chapter includes concise explanations, tactical examples, and key takeaways to help readers build habits around nutrition, strength training, cardiovascular fitness, recovery, and sleep. The manual also explores the powerful brain-boosting effects of exercise, including enhanced mood, learning capacity, and stress resilience, supported by cutting-edge research and real-world success stories like the Naperville school district.

Designed for busy professionals, veterans, and anyone seeking high-performance living, this book prioritizes consistency over intensity and long-term change over short-term hype. It shows how mastering a few key habits can lead to extraordinary results—physically, mentally, and emotionally.

The Lean By Habit Field Manual isn’t just a fitness book—it’s a blueprint for becoming the disciplined, resilient version of yourself you’ve always wanted to be. Small steps. Big results. Every day.