You're sleeping enough hours. You've tried better routines. And yet, you still wake up tired. If that sounds familiar, the problem may not be sleep at all. In this updated edition of Why You're Always Tired (Even When You Sleep), exhaustion is treated not as a personal failure or a discipline problem, but as a systems problem. Modern life quietly drains energy through constant stimulation, irregular schedules, always-on work, cognitive overload, and environments that never allow the body to fully stand down. Rather than offering strict routines, biohacks, or one-size-fits-all advice, this book explains why fatigue accumulates and how to reduce it without trying harder. What's New in the Updated Edition This expanded version includes new chapters and tools that reflect how work, technology, and daily life have continued to change, including: Always-on work and blurred boundaries Background thinking and decision saturation Hustle culture internalized and guilt around rest Environmental design that supports recovery The Fatigue Stack: a clear framework for understanding layered exhaustion A 7-day reset and a 21-day rhythm rebuild designed for real life What This Book Helps You Do Understand why sleep alone isn't fixing your fatigue Stop blaming yourself for exhaustion that isn't your fault Reduce energy drain by changing surroundings, not willpower Make rest feel safe, allowed, and effective again Build calmer days that lead to better nights, without guilt