Running On Empty book cover, showing a tired woman at a desk with supplement bottles and a notebook

Finally, an Answer to Why You’re Still Exhausted Despite Doing Everything Right

What Sleep Data Reveals About Autoimmune Fatigue, and How to Recover.

Dr. Tiffany Brown-Bush ND, LCMHC, AFMC

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Read your body’s data as feedback, not judgment.

Sleep hygiene

Supplements

Appointments

Yet you are still tired.

The problem

You did it all: sleep hygiene, supplements, appointments. Yet you are still tired.

This book is written for women juggling more than they can handle aged 30 to 55. They are living with autoimmune conditions like lupus, thyroid disorders, and fibromyalgia, or with unexplained chronic fatigue that has outlasted every protocol. You are usually the one others depend on. You have been dismissed by conventional medicine and you are still looking for a real answer.

She’s also consistently chosen problem relationships as an adult, and struggles with people-pleasing. Her nervous system isn’t malfunctioning. It’s doing exactly what it learned to do.
Running On Empty, Chapter 2

The approach

A clinical method for reclaiming real energy.

Dr. Tiffany Brown-Bush blends memoir, sleep science, and trauma-informed self-help as she traces her own lupus journey from exhaustion and dismissal to agency. The path runs through Ring data, nervous system repair, and honest lifestyle experiments.

Read your body’s data as feedback, not judgment.

A lined notebook with a hand-drawn cycle diagram beside a blue mug of coffee, a gold pen, supplement bottles, and eucalyptus on a dark surface

The proof

You are not broken. Your nervous system is doing its job.

You are not broken. Your nervous system is doing its job. It’s just doing a job that the current version of your life no longer requires.
Running On Empty, Chapter 2

Curiosity tends to accompany a more regulated state. When you’re genuinely curious, your nervous system is in a different mode than when you’re frustrated or anxious. Curiosity is, in a very real sense, the beginning of regulation.
Running On Empty, Chapter 2

The 3am wake-up read as biology, not blame

The middle-of-the-night jolt is often a cortisol spike, a threat check your nervous system runs on old instructions. You learn to read it as feedback instead of failure.

HRV, deep sleep, and readiness in plain language

Heart rate variability, deep sleep percentage, REM, resting heart rate, readiness. Trends over time matter more than any single number, and this book teaches you to zoom out.

The wired-but-tired night explained

That buzzing exhaustion is accumulated cortisol from a day of stress responses that were never fully completed. Naming it is the first step toward interrupting it.

A realistic plan, held at sixty percent

Sustainable change asks for the minimum effective dose, not heroics. Sixty percent held over time keeps the trend moving in the right direction.

Running On Empty book cover shown a second time near the closing invitation

You don’t need to push harder. You need a different plan.

About the author

Dr. Tiffany Brown-Bush did not choose this work from a comfortable distance. She lived the intersection of trauma, chronic illness, and the need for healing that treats the whole person. Her own journey through chronic illness led her to the realization that the brain, body, and mind cannot be separated from one another, or from the impact relationships have on our health.

She holds a Master of Science degree and is a Licensed Clinical Mental Health Counselor, a Traditional Naturopathic Doctor, and a Board Certified Doctor of Natural Medicine, with advanced functional medicine training through the Kharrazian Institute. That foundation informs more than 25 years of work with clients.

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Sixty percent of your plan during a hard week is still sixty percent more than nothing. And sixty percent, held consistently over time, is more than enough to keep the trend moving in the right direction.
Running On Empty, Chapter 6