The labs say “normal.” But your life doesn’t feel normal.

This book is for the kind of tired a nap can’t fix—the tired that makes you wonder if you’re slowly becoming someone you don’t recognize. The kind where your body feels heavier than it should, your mind won’t hold a thought steady, and even small tasks feel like they cost too much. Some days it’s brain fog or headaches. Some days you’re wired-but-tired: your mind won’t quiet, and sleep feels strangely hard. And sometimes your heart flutters or races and you quietly ask, “What is happening to me?”

Dr. Athan Smyrlis, MD is a cardiologist with 25 years in clinical practice. He wrote Why So Tired? for the “in-between” place—when you’re not “sick enough” for a clean diagnosis, yet you don’t feel well enough to live fully. In plain language, he explains why this happens—how disrupted rhythm, shallow sleep, blood-sugar swings, chronic stress load, and low recovery can keep you stuck even when tests look fine—and how to restore alignment without extremes. This is not a stack of hacks or a one-week reset—it’s a clear explanation plus a paced plan built to work in real life.

The book begins with a Mini Compass: a clear framework to identify what’s draining you and what reliably restores you. Then it becomes a 101-day guided journey—one page a day—designed for tired brains and busy lives. You’ll work with the foundations that most powerfully shape how you feel: circadian rhythm and light, sleep depth and consistency, food timing and steadier blood sugar, daily movement, stress load and real recovery, and the often-overlooked fuel of connection and meaning.

Each day includes a memorable insight, quick science (with endnotes), a tiny “doable today” step, and space to write a few lines by hand—so progress stays realistic, even on hard days.

No catching up. No shame. Just direction—day after day—until life feels workable again.

Ideal for readers of evidence-informed wellness and anyone navigating fatigue, brain fog, or unrefreshing sleep despite “normal” labs.

Note: Educational content only; not medical advice. If symptoms are severe, new, or worsening, seek evaluation from a qualified clinician.