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# Adrenal Fatigue

a·dre·nal fa·tigue - ah-DREE-nul fah-TEEG

## Definition

Adrenal fatigue is a term used in alternative and [integrative medicine](/glossary/integrative-medicine) to describe a collection of symptoms - including chronic tiredness, body aches, sleep disturbances, and difficulty handling stress - that are thought to result from the adrenal glands being unable to keep up with the body's demand for [cortisol](/glossary/cortisol). The adrenal glands are small, walnut-sized organs that sit on top of your kidneys and produce [hormones](/glossary/hormone) that help regulate metabolism, blood pressure, and your body's [stress response](/glossary/stress-response).

The theory suggests that prolonged physical, emotional, or mental stress forces the adrenal glands to work overtime, eventually depleting their ability to produce adequate cortisol levels. While the concept resonates with many patients who experience unexplained fatigue, it is important to note that most endocrinology organizations do not recognize adrenal fatigue as a formal medical diagnosis. The scientifically established condition of adrenal insufficiency (Addison's disease) involves measurably low cortisol production and is a distinct, well-documented disorder.

Despite the controversy, the symptoms associated with adrenal fatigue are real and warrant investigation. Many healthcare providers now frame the discussion around HPA (hypothalamic-pituitary-adrenal) axis dysregulation, which provides a more evidence-based framework for understanding how chronic stress affects hormone production and overall well-being.

## Also Known As

HPA axis dysfunction Adrenal insufficiency (informal) 

## Key Facts

-   • The term was coined by chiropractor James Wilson in 1998 and is not recognized by most mainstream endocrinology organizations. 
-   • Symptoms overlap significantly with other conditions including hypothyroidism, depression, sleep apnea, and chronic fatigue syndrome. 
-   • The adrenal glands produce over 50 hormones including cortisol, aldosterone, and DHEA. 
-   • HPA axis dysregulation is the evidence-based framework that most closely aligns with the concept of adrenal fatigue. 
-   • Blood tests for cortisol levels can help distinguish between true adrenal insufficiency and other causes of fatigue. 

## How It Relates To Your Health

If you experience persistent fatigue that doesn't improve with rest, difficulty recovering from illness or stress, or cravings for salty foods, your healthcare provider may evaluate your adrenal function through blood [cortisol](/glossary/cortisol) tests, ACTH stimulation tests, or saliva cortisol panels. These tests can rule out true adrenal insufficiency (Addison's disease) and help guide treatment.

Managing HPA axis health involves addressing the root causes of chronic stress through sleep optimization, stress management techniques, balanced nutrition, and gradual exercise. Some [integrative medicine](/glossary/integrative-medicine) practitioners also recommend adaptogenic herbs and targeted supplementation, though evidence for these approaches varies.

## Related Terms

[Cortisol](/glossary/cortisol)[DHEA](/glossary/dhea)[Stress Response](/glossary/stress-response)[Circadian Rhythm](/glossary/circadian-rhythm)[Homeostasis](/glossary/homeostasis)

## Related Articles

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### Sleep Hygiene: 12 Evidence-Based Tips

2025-09-15

## Sources

1.  [Adrenal Insufficiency & Addison's Disease](https://www.niddk.nih.gov/health-information/endocrine-diseases/adrenal-insufficiency-addisons-disease) - National Institute of Diabetes and Digestive and Kidney Diseases (NIH)
2.  [Adrenal Fatigue: Is It Real?](https://www.endocrine.org/patient-engagement/endocrine-library/adrenal-fatigue) - Endocrine Society
3.  [Adrenal fatigue: What causes it?](https://www.mayoclinic.org/diseases-conditions/addisons-disease/expert-answers/adrenal-fatigue/faq-20057906) - Mayo Clinic

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