Is Adrenal Fatigue Real? A Functional Medicine Doctor’s Honest Answer

You’ve been exhausted for months, maybe even years. You sleep poorly, wake up foggy, and feel like you’re running on fumes. Somewhere along the way, you discover a name for what might be happening: adrenal fatigue.

But then you start digging and hit a wall. Some doctors say it’s not a real condition. Others say it explains exactly what you’re experiencing. And now you’re more confused than ever.

So, is adrenal fatigue real?

Here’s the short answer: your symptoms are real. However, the term “adrenal fatigue” isn’t the best way to describe what’s going on. In this article, we’ll clear it up. 

Keep reading as we unpack the adrenal fatigue debate and how functional medicine in Orland Park, IL approaches these symptoms.

Is Adrenal Fatigue a Real Condition?

The medical community doesn’t recognize adrenal fatigue as a real diagnosis.¹ One quick Google of “adrenal fatigue” and that’s painfully clear. 

However, functional medicine recognizes the pattern of symptoms as real. That said, the name doesn’t accurately portray the mechanisms behind these symptoms. This has stirred up a lot of controversy.

To understand the full picture, let’s back up a bit.

The Origins of Adrenal Fatigue

The term ‘adrenal fatigue’ was coined in 1998 by Dr. James Wilson, a chiropractor and naturopath. It was then popularized by his book Adrenal Fatigue: The 21st Century Stress Syndrome in the early 2000s.

In his practice, Dr. Wilson saw many patients present with a similar set of symptoms. Exhaustion, sleep disruptions, weight changes, and cravings were some of the most common. Some of these symptoms resemble Addison’s disease, a type of adrenal insufficiency. This is a condition where the adrenals don’t produce enough cortisol.

However, Dr. Wilson’s patients didn’t meet the criteria for that diagnosis. Their cortisol levels fell within the normal range. Still, they were suffering.

Dr. Wilson used the term adrenal fatigue to describe this collection of stress-related symptoms. He proposed that chronic stress may overwork the adrenal glands. This could disrupt the body’s ability to respond to stress. If this pattern persists for too long, symptoms like fatigue may emerge. 

Why the Medical Community Says “No”

Most endocrinology research doesn’t support adrenal fatigue as a recognized medical condition.¹ Conventional doctors view it as a medical myth. Instead, it’s seen as a general term to describe a set of symptoms.

Part of the pushback comes from the name itself. The term “adrenal fatigue” implies that the adrenal glands wear down from overwork. But that’s not how the body works. The adrenals don’t burn out from chronic stress.

Adrenal disorders, like Addison’s disease and Cushing’s disease, do exist. But these conditions have specific underlying causes, like autoimmune damage or tumors – not chronic stress alone.

Adrenal Fatigue Symptoms Can Be Nonspecific

Another concern is that adrenal fatigue symptoms are very nonspecific. For example, fatigue can be a sign of many underlying conditions, such as anemia, depression, and thyroid issues. 

Doctors worry that focusing on adrenal fatigue could delay finding the true cause of patients’ symptoms. A valid concern, which we’ll come back to later. So if adrenal fatigue isn’t a recognized diagnosis, then what does explain that “tired but wired” feeling so many struggle with?

What’s Really Happening: HPA Axis Dysfunction

Adrenal fatigue symptoms are real. But the term “adrenal fatigue” is misleading. It suggests the adrenal glands ran out of steam and stopped producing cortisol.

A more scientifically accurate way of describing what’s going on is HPA axis dysfunction.

The HPA axis, short for hypothalamus-pituitary-adrenal axis, is the system in charge of your body’s stress response. It’s made up of a complex feedback loop that connects your brain and adrenal glands.²

How the HPA Axis Works

When you’re stressed, your HPA axis activates. The hypothalamus sends stress signals to your pituitary gland, triggering the release of cortisol and other stress hormones.

As cortisol rises, it gives your body a boost of energy. Heart rate and blood flow increase, and non-essential tasks like digestion slow down. These changes help you respond to threats in the moment. Once the stress passes, cortisol levels drop, and your body returns to baseline.

When Chronic Stress Disrupts the HPA Axis

The problem? Chronic stress can cause your body to get stuck in a stress loop. This can dysregulate the HPA axis and cause cortisol rhythms to get out of sync. Levels may be too high, too low, or rise or fall at the wrong times. 

This is known as HPA axis dysfunction. Essentially, it’s a breakdown in how your brain and adrenal glands communicate. Its classic sign? You guessed it: that “tired but wired” feeling that’s linked with adrenal fatigue. 

So, it’s not that adrenal fatigue isn’t real. It’s just an outdated way to describe HPA axis dysfunction. Since it’s a popular term that many people are familiar with, functional medicine doctors often use the names interchangeably.

Common Symptoms of HPA Axis Dysfunction (Adrenal Fatigue)

Regardless of whether you label it adrenal fatigue or HPA axis dysfunction, when your stress system becomes dysregulated, symptoms can start to show up.

Common signs of HPA axis dysfunction include:

• Extreme fatigue 
• Anxiety and irritability
• Insomnia
• Feeling “tired but wired”
• Brain fog
• Weight gain (especially around the abdomen)
• Poor stress tolerance
• Blood sugar imbalance
• Cravings for sugary or salty foods
• Weakened immunity
• Overreliance on caffeine

Keep in mind that these symptoms overlap with many other conditions. 

For example, fatigue is linked with anemia, depression, and blood sugar imbalance. And anxiety can be a sign of thyroid dysfunction, nutrient deficiencies, or perimenopause. So having these symptoms doesn’t necessarily mean your HPA axis is dysregulated.

A comprehensive evaluation can help identify what’s really going on. And this is where functional medicine shines. 

How Functional Medicine Approaches HPA Axis Dysfunction

Functional medicine takes a holistic, personalized approach toward HPA axis dysfunction.³ This often includes testing, lifestyle support, and in some cases, targeted supplementation. 

Here’s a look at how our Orland Park functional medicine clinic approaches adrenal fatigue treatment:

Testing

Cortisol dysregulation doesn’t look the same for everyone. Some patients have high cortisol, while others may have low cortisol, or even a flattened cortisol curve. 

Advanced testing can provide a clearer picture of how stress is affecting your body. This may involve saliva testing to check your cortisol awakening response (CAR) and daily cortisol rhythms. 

DUTCH testing can also be incredibly valuable. This comprehensive panel assesses sex hormones and their metabolites, as well as adrenal hormones like cortisol. It also includes an organic acids panel with markers for melatonin, gut health, brain health, and detox.

Other tests, such as thyroid panels, may also be recommended, depending on your symptoms. 

Lifestyle Support

Your lifestyle influences how you respond to stress. Because of this, lifestyle habits are foundational for adrenal fatigue recovery. 

Common areas of support include:

• Restorative sleep: Prioritize quality sleep by practicing good sleep hygiene
• Stress reduction: Reduce ongoing sources of stress when possible
• Relaxation techniques: Practice calming tools like deep breathing, mindfulness, and vagus nerve exercises to build stress resilience
• Blood sugar balance: Eat a blood sugar-friendly diet to keep glucose and cortisol stable
• Gentle movement: Move regularly in ways that support your nervous system (e.g., walking, yoga, tai chi)

Supplements

In some cases, supplements may be recommended to help restore balance to your body. Adaptogens like ashwagandha, rhodiola rosea, and holy basil are just a few that help support a healthy stress response. 

That said, supplements should always be personalized and used in tandem with lifestyle support.

For a deeper dive on how to reverse adrenal fatigue naturally, check out this article. 

Feeling “Tired but Wired?” Support Adrenal Fatigue Recovery with Functional Medicine in Orland Park, IL

If you’re dealing with fatigue, poor sleep, or feeling stuck in a stress loop, it may be time to take a look at what’s going on beneath the surface. While the term “adrenal fatigue” may not be the most accurate, the symptoms behind it are real. And often, they’re connected to a dysregulated HPA axis. 

If you’ve already cleaned up your lifestyle and are still struggling, functional medicine can help uncover what’s really going on. At our Orland Park functional medicine clinic, we take a personalized, root-cause approach to restore balance to your body. 

Live in the Orland Park or greater Chicago area and looking for support? Follow these steps:

1. Contact us with questions.
2. Schedule your first appointment with our functional medicine doctor in Orland Park, IL.
3. Get a personalized plan to balance cortisol and reclaim your energy!

Other Holistic Health Services at Anchored in Health in Orland Park, IL

At Anchored in Health, we go beyond functional medicine and offer a wide range of services to support your health and well-being. This includes chiropractic care, acupuncture, massage therapy, and the Shape ReClaimed program. We also offer genetic testing, thermography, and Vibrant Wellness testing to get to the root cause of stubborn symptoms. If you’re ready to take a holistic approach to your health and live in the Orland Park area, reach out to us today!

Disclaimer: The information provided on this blog is for educational and informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. The content is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you may have regarding your health or a medical condition.

Reading this blog does not establish a doctor-patient relationship between you and Anchored In Health or any of its practitioners. Reliance on any information provided in this blog is solely at your own risk.

Sources:

1. Adrenal Fatigue Does Not Exist: A Systematic Review | PMC
2. Hypothalamic-Pituitary-Adrenal (HPA) Axis | Cleveland Clinic
3. An Integrative Approach to HPA Axis Dysfunction: From Recognition to Recovery | The American Journal of Medicine