Burnout and Fatigue: Why You Are So Tired, and What Your Adrenals Have to Do With It

I want every Woman to feel seen and heard and validated that there's a reason Women in Midlife literally feel burnt out. Burnout is a real thing.

So many Women I work with describe the same bottom of the well. You may sleep 8 hours, wake as though you never slept, and need coffee to reach ordinary. The word most Women reach for is 'burnout', and the body keeps a precise record of it.

I know that bottom of the well. When I was at my most depleted, before I understood what was happening in my body, Christopher and I would walk the dogs around the field, and I would look at him with big, tired eyes and ask, 'Do you think when we die, we get to rest?'

I asked it again and again. That question was my exhaustion finding words, my body telling me something was off long before any lab confirmed it.

Listen to the phrases you hear yourself repeating. They are data.

The Cortisol chapter shows you how to map your daily curve, and the Stress chapter shows you how the load builds. This chapter is about the glands themselves: what they make, why 'adrenal fatigue' is such a contested phrase, how to recognize the rare and serious adrenal disease that must never be missed, and how Women actually recover.

2 Small Glands, 4 Big Jobs

Your adrenal glands sit on top of your kidneys, 1 on each side. Each is shaped like a rounded triangle, about half an inch high and 3 inches long.

Each gland has 2 parts. The outer layer, the cortex, makes steroid hormones: cortisol and DHEA on a signal from your brain, and aldosterone mostly on signals from your kidneys and your potassium level. The inner core, the medulla, is part of your Nervous System and releases adrenaline within seconds of a threat.

4 hormones carry most of the adrenal story:

• Cortisol, from the cortex. It helps your body use fat, protein, and carbohydrate, raises blood sugar, calms inflammation, supports your blood pressure, and helps set your sleep and wake cycle.
• Aldosterone, from the cortex. It tells your kidneys to hold on to sodium and let potassium go, which keeps your blood pressure and your fluid balance steady. When aldosterone runs low, sodium slips away, blood pressure can drop, and potassium can climb.
• DHEA, from the cortex. It is a building block your tissues turn into estrogen and testosterone, and it carries more weight once your ovaries slow down in Perimenopause and Menopause.
• Adrenaline and noradrenaline, from the medulla. They speed your heart, strengthen each beat, and send blood to your muscles and brain for the sprint.

Adrenaline is the jolt, and cortisol is the long tide that follows it, as the HPA axis section of the Stress chapter shows step by step.

Why Conventional Medicine Does Not Recognize 'Adrenal Fatigue'

The phrase 'adrenal fatigue' spread through books and websites to describe chronic stress wearing the adrenal glands down. Endocrinologists have never accepted it, for 3 reasons: weak research, no valid test, and the risk of missing a real disease.

The book that carried the phrase furthest is Adrenal Fatigue: The 21st Century Stress Syndrome (2001), by Dr. James L. Wilson, ND, DC, PhD, who says he coined the term in the late 1990s. It gave so many exhausted Women a name for what they were living, and his insistence on fixing the basics first still holds. It remains a brilliant, compassionate book, and research has not yet confirmed the idea itself, as the evidence that follows shows. Find it in the Resource Directory.

In a 2016 systematic review in BMC Endocrine Disorders, Flavio Cadegiani and Claudio Kater screened 3,470 articles and found 58 studies that met their criteria.

The results conflicted almost across the board, the study designs were weak, and many used cortisol methods endocrinologists do not endorse. They concluded there is no substantiation that 'adrenal fatigue' is an actual medical condition.

The Endocrine Society, the professional society of hormone specialists, states it plainly for patients: 'No scientific proof exists to support adrenal fatigue as a true medical condition.' It adds that there is no test that can detect adrenal fatigue.

The Society's concern is protective. It worries that a Woman given this label may never be tested for a real and treatable cause of her exhaustion, such as a thyroid problem, anemia, sleep apnea, depression, or true adrenal disease. That concern is fair, and it is the same concern that runs through 'The Mimics' chapter.

It also warns about adrenal hormones taken without need. Its patient guidance explains that taking them when your body does not need them can lead your own adrenal glands to stop making the hormones you need under physical stress, which can put you at risk of adrenal crisis. It also warns that supplements sold for adrenal fatigue may contain more, or less, than their labels say.

So when your endocrinologist says 'adrenal fatigue is not real', hear what is true in it. The glands themselves are rarely worn out, and hidden hormones in a supplement bottle can do real harm.

What Functional Medicine Means by It

Functional Medicine practitioners see something real in the same Women, and most of them now use a more precise name for it: HPA-axis dysregulation. The problem sits in the conversation between your brain and your adrenals, in the signaling, the timing, and how well your cells still hear cortisol's message. The Cortisol chapter's section on the stages people call 'adrenal fatigue' explains that shift in language.

The idea of stages goes back to Hans Selye, the endocrinologist who first described his General Adaptation Syndrome in 1936. Selye's model names 3 stages of adaptation: alarm, resistance, and exhaustion.

Selye also drew a distinction we tend to forget. He called the stress that stretches and enlivens us eustress, and the stress that wears us down distress, and he titled his 1974 book Stress Without Distress. The aim in Midlife is enough recovery that stress can do its enlivening work.

Many Functional Medicine practitioners describe a Midlife version of that arc in 3 broad patterns on a 4-point cortisol test:

1. High. Cortisol runs high through the day and often into the night. You may feel wired, anxious, and unable to wind down, while DHEA still holds.
2. Mixed. The curve loses its shape, often with a weak morning and a second wind at night, and DHEA-S often begins to fall.
3. Flat. Cortisol runs low all day, with deep fatigue that rest does not lift, frequent colds, light-headedness on standing, and a low DHEA-S.

Dr. Izabella Wentz describes 4 patterns along the same continuum, which the Cortisol chapter lays out as wired, rollercoaster, night owl, and flat.

Her book Adrenal Transformation Protocol (2023) turns that map into a 4-week plan. She frames recovery as sending your body signals of safety, through nutrition, minerals and electrolytes, morning sunlight, and emotional safety, and she estimates that about 90 percent of people with thyroid conditions carry some degree of adrenal dysfunction. Her April 2023 conversation with Katie Wells on The Wellness Mama Podcast is a warm place to start, and the book is listed in the Resource Directory.

This is a Functional Medicine model. Endocrinology does not endorse reading a 4-point salivary curve for adrenal rhythm, and the research on these stages is mixed, as the Cadegiani review found.

The pattern is real in the Women I work with, it shows up in their curves and their lives, and it is treatable. Women move from flat back toward a morning rise when the drivers underneath are found and addressed: blood sugar, sleep, an inflamed gut, a slow thyroid, depleted sex hormones, and a life with no room to recover.

Signs the Hashimoto 411 educators link with adrenal imbalance. You may recognize a few of them, or nearly all:

• Cravings for food, and especially for salt.
• Weight settling around your belly and thighs.
• Harder PMS, low libido, and Perimenopause symptoms that feel louder than they should.
• A short fuse, overreacting, and a negative lens on everything.
• Exhaustion that will not lift, the 'can't stop, can't go' state of being tired and wired at once.
• Trouble sleeping, waking between 2 and 4 AM, and waking tired.
• Brain fog, trouble focusing, and racing thoughts.
• Sensitivity to bright sunlight.
• Frequent infections, and slow recovery from each 1.
• Anxiety, hopelessness at rest, and overwhelm.
• High blood pressure, or low blood pressure with light-headedness when you stand.
• Blood sugar crashes, and insulin resistance.
• Unexplained back or knee pain.

Several of these have clear physiology behind them, since cortisol shapes blood sugar, sleep, immune defense, blood pressure, and where your body stores fat. Others, such as light sensitivity and back or knee pain, come from clinical observation without research to confirm the link. Hold the list as a reason to map your cortisol curve, since every item on it has other possible causes too.

1 line from their teaching sums up the thyroid connection: if you cannot get your thyroid to balance, look to your adrenals. Cortisol steers T4 to T3 conversion and Reverse T3, as 'Conversion: Where Your Thyroid Hormone Is Won or Lost', in 'Your Thyroid, In Depth', explains.

Addison's Disease: True Adrenal Insufficiency

There is an adrenal disease that every Woman with an Autoimmune condition should know by name. Addison's disease, also called primary adrenal insufficiency, means the adrenal cortex itself is damaged and can no longer make enough cortisol, and often aldosterone.

It is rare. The Endocrine Society's guideline puts it at about 100 to 140 cases per million people in Western countries.

In developed countries, Autoimmunity causes 8 or 9 of every 10 cases, according to the National Institute of Diabetes and Digestive and Kidney Diseases. The immune system targets an enzyme in the adrenal cortex called 21-hydroxylase.

It also travels with thyroid Autoimmunity. When Addison's disease occurs alongside Autoimmune thyroid disease or type 1 diabetes, the pattern is called Autoimmune polyglandular syndrome type 2, and it is about 3 times more common in Women, usually beginning between the ages of 20 and 40. 'When 1 Condition Becomes More Than 1', in 'How Autoimmunity Begins: The 3 Factors and the Years Before a Diagnosis', explains why 1 Autoimmune condition raises the odds of another.

The warning signs, from the NIDDK and the Endocrine Society:

• Long-lasting fatigue and muscle weakness
• Loss of appetite and weight loss you did not try for
• Belly pain, nausea, vomiting, or diarrhea
• Low blood pressure, and feeling faint when you stand
• Darkening of the skin
• On your labs: low sodium, high potassium, or low blood sugar
• Irritability, low mood, joint pain, and irregular or missing periods

Many of those overlap with the flat pattern above. The symptoms come on slowly, so they are easy to miss, and for some people the first sign is an adrenal crisis, a life-threatening emergency. If you are vomiting, cannot keep fluids down, feel faint, or are confused, go to emergency care.

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There is 1 more reason to rule it out. Starting thyroid hormone in a body with untreated adrenal insufficiency can bring on an adrenal crisis, which is why the Endocrine Society's guideline replaces cortisol first when both conditions are present. The Cortisol chapter explains how to raise this with your prescriber if thyroid medication has made you feel worse.

My Own Adrenals

My cortisol curve went flat, as I describe in 'Cortisol, the stress hormone', in 'What Is Actually Happening in Your Midlife Body: Your Hormones, 1 by 1'. My ZRT saliva test showed my cortisol so low that I was very close to Addison's disease. I did a blood test for Addison's, and it was negative.

I was right on the cusp.

My numbers, from low to recovering:

• My first DUTCH test: a 24-hour free cortisol of 34, against a range of 65 to 200, low across the day.
• About 8 months later, ZRT saliva: a morning cortisol of 0.9, very low.
• About 8 months after that, ZRT saliva: a morning cortisol of 3.6, climbing back.

These are my own results, reached with my practitioners, and 1 Woman's numbers are not a promise for yours. A cortisol that low belongs with a physician first, to rule out adrenal insufficiency, the way mine was.

My cortisol was flatlined, almost Addison's. I treated it based on the education in the Hashimoto 411 group. 1 of the educators there, in particular, helped me understand my cortisol patterns.

That educator taught me to read the shape of my own curve, and once I could read it, I could finally work with it.

This is what I did, alongside healing my thyroid, my gut, and my sex hormones:

I take an adrenal cocktail, vitamin C and potassium, and Thorne Adrenal Cortex. You treat your cortisol based on your unique pattern. There's no one size fits all. Work with someone skillful who understands cortisol patterns and how to treat them.

I also had to be honest about my life. My work was more than my body could carry during those years.

I had to make changes in my work while I was going through this healing, because my body wasn't resourced to handle the work stress.

What surprised me most came at the end. Once my thyroid, my gut, my sex hormones, and my adrenals had each been treated, my Nervous System settled on its own.

My Nervous System just felt wonderful, relaxed, and calm. A resourced body gives you a regulated Nervous System.

Today I live sugar-free and caffeine-free, because I do not need either one. I sleep well, my energy is great, and I returned to work I love with a body that can hold it.

When my cortisol first came back low at every point of the day, I asked the educator who taught me to read my curve a question. I did not think I felt all that badly, so what could I look forward to feeling with healthy adrenals?

Her answer stopped me. A lot of us do not realize we are having symptoms, because we get used to the way we feel. With results like mine, she said, she would expect a Woman to be tired all day, wake unrefreshed, have internal tremors in the morning, blood sugar swings, headaches, a late-afternoon slump with a second wind at night, and night sweats.

I found myself in almost every line. My morning shakiness eased once I began eating fat and protein before bed, my headaches stopped after I began AIP and thyroid medication, and my night sweats faded in the months after I started AIP.

Many of us here have been caring for children, partners and family members for decades, and oftentimes we have whatever energy is left over, which is very, very little. We've tapped into the mindset of 'this is just what I have to do to get by,' and it chips away at our health and well-being over decades.

If you feel fine beside labs that say otherwise, your 'fine' may be years of adapting. Ask what your body could feel like, and let your labs help answer.

Recovery Happens in Layers

Functional Medicine asks why before it asks what to take. A flat curve is a signal, and the root cause is whatever has been asking your adrenals to compensate for years.

The usual suspects, each covered elsewhere in this book: blood sugar crashes, short sleep, an inflamed gut or SIBO, a slow thyroid, low ferritin, falling sex hormones, hidden infections or mold, and a life that never lets you stand down.

Recovery draws on 5 kinds of tools at once: lifestyle, diet, behavior, supplements, and, when your labs call for it, medication. No single tool carries a flat curve back to a morning rise on its own, and the order depends on your pattern.

A Woman in the high pattern needs help settling an evening surge. A Woman in the flat pattern needs help rebuilding a morning rise. The same supplement can help 1 of them and flatten the other, which is why testing comes first.

Blood Sugar, Light, Sleep, and Saying No

The daily practices in 'What Helps: Practices That Reset the Clock', in the Cortisol chapter, are the foundation, and they help in every pattern. A few details deserve extra weight when your adrenals are tired.

Blood sugar. Every crash is an emergency your adrenals are asked to answer.

My own rhythm is fat and protein soon after waking, then meals about 4 to 5 hours apart. Breakfast within the first hour spares your adrenals their first rescue of the day.

Light at both ends of the day. Bright light in the morning helps anchor your cortisol rise. In the evening, I wear orange glasses when I use a computer, to cut the blue light that holds melatonin back.

Sleep. I feel tired around 10:30, so that is when I go to bed. If you push past that window to midnight, you may find a second wind and pay for it the next morning.

Saying no. A calendar with no white space asks your adrenals to run the fast track all day. For some Women, the most powerful adrenal treatment is a changed job description, a shared caregiving load, or 1 standing commitment released.

I changed my own work during my healing years, because my body was not resourced to handle the work stress.

I think saying no is 1 of the biggest forms of self-respect that you can have, right? Managing what they feel about it is not our job description.

Movement matched to your pattern. In the flat pattern, long, hard workouts on short sleep can deepen the hole, while walking, Qigong, and gentle strength work build capacity. As you recover, your energy the next day tells you whether you added the right amount.

Heat, low and slow. A sauna or an infrared blanket asks your body to answer the heat: your heart rate climbs, and you lose water and salt in your sweat. A tired stress response has less reserve for that answer, so start gently.

While I was rebuilding a very low cortisol curve, an educator in Hashimoto 411 suggested a warm setting rather than a hot one, for 10 to 15 minutes, 2 or 3 times a week. Hydrate well before and after, with electrolytes such as the adrenal cocktail, and lengthen the time and raise the heat slowly as your body allows.

If you have low blood pressure or heart disease, ask your practitioner first, as the Heart chapter notes.

Fasting and cold plunges ask the same tired system for even more. 'Fasting, Saunas, and Cold: What Helps a Woman's Body, and When It Backfires' explains why a flat cortisol curve has so little reserve for either, and why warmth is what nourishes my own body.

Caffeine and sugar. Both are artificial energy, and they can carry a flat curve for years while hiding it from you. Tapering them slowly lets you meet your honest energy.