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Q&A with Dr. J: Is Adrenal Fatigue Really a Genetic Issue? 

 April 7, 2026

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The term “adrenal fatigue” has become widely used in wellness conversations, yet it remains controversial in conventional medicine. Some practitioners argue that it does not exist as a formal diagnosis, while others recognize a pattern of symptoms that clearly reflects dysfunction in how the body responds to stress.

For many individuals, the experience is very real. Persistent exhaustion, low motivation, poor sleep, and difficulty handling daily demands can feel debilitating. The question is not whether these symptoms exist, but what is actually driving them.

According to Dr. J Dunn, the answer often lies deeper than the adrenals themselves.

What People Call “Adrenal Fatigue”

In clinical practice, adrenal fatigue is often used to describe a cluster of symptoms that include:

  • Ongoing fatigue, even after rest
  • Low motivation or difficulty completing tasks
  • Dizziness when standing quickly
  • Low blood pressure
  • Sleep disturbances
  • Mood changes, including low mood or irritability

These symptoms are commonly associated with chronic stress, poor sleep, and inconsistent nutrition. However, simply attributing them to “overworked adrenal glands” does not fully explain what is happening in the body.

The Traditional Approach and Its Limitations

In many natural health settings, adrenal fatigue is treated with supplements designed to support adrenal function. These may include herbal blends, vitamins, or glandular extracts intended to boost energy and resilience.

While these approaches can sometimes provide temporary relief, they often act as a surface-level solution rather than addressing the root cause.

Dr. J describes a shift in perspective that occurred through years of clinical experience. Instead of asking how to support the adrenals directly, the more important question became: why is the body struggling to regulate energy and stress in the first place?

The Role of Brain Chemistry and Stress Hormones

To understand what is happening, it is helpful to look at how the body produces and regulates key stress-related chemicals.

Dopamine, norepinephrine, and adrenaline—collectively known as catecholamines—play a central role in energy, motivation, and the stress response. These chemicals are produced through specific biochemical pathways that are influenced by genetics.

If these pathways are not functioning efficiently, the body may struggle to produce adequate levels of these neurotransmitters. This can lead to symptoms such as low energy, lack of motivation, and difficulty handling stress.

On the other hand, some individuals may produce stress hormones effectively but struggle to break them down. Over time, this can lead to a state of overstimulation followed by exhaustion.

Two Common Patterns Behind Adrenal Exhaustion

Dr. J highlights two primary patterns that can lead to what is often labeled as adrenal fatigue.

1. Burnout from Excess Stress Hormones

Some individuals have genetic patterns that slow the breakdown of stress hormones such as adrenaline. This can result in prolonged exposure to high levels of stress signals in the body.

Over time, the system becomes overwhelmed. Receptors become less responsive, and the body shifts into a state of exhaustion. This can feel like running on high alert for too long and eventually crashing.

2. Low Production of Stress Hormones

In other cases, the issue is not excess but insufficient production. If the body cannot effectively produce dopamine, norepinephrine, and adrenaline, it may struggle to generate the energy needed for daily functioning.

This can lead to fatigue, low blood pressure, and reduced motivation.

Although these patterns appear different, they can produce similar symptoms, which is why a one-size-fits-all approach often falls short.

Cortisol and the Stress Response

Cortisol, often referred to as the body’s primary stress hormone, plays a key role in this process.

When the body perceives stress, adrenaline is released to initiate a rapid response. Cortisol follows as a longer-term regulator, helping to manage inflammation and support the body during prolonged stress.

However, when cortisol remains elevated over time, it can contribute to:

  • Weight gain
  • Fluid retention
  • Sleep disruption
  • Further fatigue

This creates a cycle in which the body is both overstimulated and exhausted at the same time.

Why Lifestyle Advice Alone Is Not Enough

Common recommendations for adrenal fatigue often include:

  • Reducing stress
  • Improving sleep
  • Eating more consistently
  • Practicing relaxation techniques

While these are valuable and necessary, they may not fully resolve the issue if the underlying biochemistry remains imbalanced.

For example, telling someone to “stress less” is difficult to implement if their nervous system is already wired to produce or retain excess stress hormones. Similarly, improving sleep can be challenging if neurotransmitter imbalances are interfering with the body’s ability to relax.

Dr. J emphasizes that when the body’s chemistry is balanced, these lifestyle changes become easier to maintain.

A Genetic Perspective on Energy and Stress

Genetics influence how efficiently the body produces and breaks down neurotransmitters and stress hormones.

Key pathways include:

  • The production of dopamine, norepinephrine, and adrenaline
  • The breakdown of these chemicals through enzymes such as COMT
  • The regulation of these processes through receptors such as the vitamin D receptor

When these pathways are supported appropriately, the body can return to a more balanced state.

This does not mean eliminating stress, which is neither possible nor desirable. Instead, it means improving the body’s ability to respond to stress and recover from it.

Moving Beyond “Supporting” to “Restoring”

One of the most important shifts in this approach is moving from external support to internal function.

Rather than relying solely on supplements to prop up adrenal function, the goal becomes helping the body:

  • Produce energy more efficiently
  • Regulate stress hormones appropriately
  • Maintain balance across interconnected pathways

When this happens, many of the symptoms associated with adrenal fatigue begin to resolve naturally.

The Role of Daily Habits

Although biochemistry plays a central role, daily habits still matter.

Chronic stress, poor sleep, irregular eating patterns, and reliance on quick energy sources such as sugar can all place additional strain on the system.

However, when the underlying pathways are functioning more effectively, individuals often find that healthier habits become easier to adopt. Cravings decrease, sleep improves, and the nervous system becomes less reactive.

A More Empowering Perspective

Perhaps the most important takeaway is that symptoms often labeled as adrenal fatigue are not a sign of personal failure or lack of discipline.

They are signals from the body indicating that something in the system is out of balance.

By understanding the biochemical and genetic factors involved, individuals can move beyond temporary fixes and toward a more sustainable solution.

The Takeaway

Adrenal fatigue may not exist as a formal medical diagnosis, but the experience of chronic exhaustion and stress dysregulation is very real.

Rather than focusing solely on the adrenal glands, a deeper approach looks at how the body produces and manages energy and stress at a biochemical level.

When these pathways are supported and brought into balance, the body can begin to regulate itself more effectively, leading to improved energy, better sleep, and greater resilience in the face of everyday stress.

Explore More from MyHappyGenes®

Important Information: This video is for educational purposes only and is not medical advice. Always consult your healthcare provider before making dietary or supplement changes.


Tags

adrenal fatigue, Burnout, Chronic Fatigue, cortisol, Stress Hormones


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