Cortisol: The Stress Hormone & Its Impact on Health
Discover the role of Cortisol in your health and longevity with Mito Health's advanced biomarker analysis. Our detailed reports cover key biomarkers, providing essential insights to help you make informed decisions for a healthier, longer life.
What is Cortisol?
Cortisol is a steroid hormone produced by the adrenal glands, often referred to as the “stress hormone” due to its key role in managing the body’s response to stress. In addition to stress management, cortisol influences several other vital functions, including regulating metabolism, controlling blood sugar levels, reducing inflammation, and supporting the body’s circadian rhythm.
What does it assess?
Cortisol levels are assessed to understand how well the adrenal glands are functioning and how the body is handling stress. A cortisol test can help diagnose conditions related to adrenal gland function, such as Cushing’s syndrome (associated with high cortisol levels) or Addison’s disease (associated with low cortisol levels). Cortisol testing can also provide insights into chronic stress, energy balance, and potential disturbances in circadian rhythm.
How do I optimize my Cortisol levels?
Chronic stress leads to persistently elevated cortisol. Incorporate stress-management practices, such as meditation, breathing exercises, and mindfulness, to help lower cortisol and support adrenal health. Cortisol follows a diurnal pattern, peaking in the morning and declining throughout the day. Good sleep hygiene practices can help regulate cortisol. Physical activity helps modulate cortisol. Aim for moderate exercise, like walking, yoga, or light strength training, rather than excessive high-intensity workouts, which can raise cortisol if done too frequently.
What do high and low Cortisol levels mean?
Persistently high cortisol levels may indicate chronic stress, Cushing’s syndrome, or adrenal overactivity. Symptoms of elevated cortisol include weight gain, high blood pressure, anxiety, muscle weakness, and elevated blood sugar. Chronically high cortisol can also suppress immune function and increase the risk of metabolic conditions. Low cortisol levels may be a sign of adrenal insufficiency, Addison’s disease, or chronic fatigue. Individuals with low cortisol may experience low energy, especially during stressful situations, and may be more prone to infections and immune challenges.
For a full breakdown of cortisol test prices across labs, see the cortisol test cost comparison.
Related Guides
References
[1] Nieman LK, Biller BM, Findling JW, et al. The diagnosis of Cushing’s syndrome: an Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2008;93(5):1526-1540. PMID: 18334580
[2] Charmandari E, Tsigos C, Chrousos G. Endocrinology of the stress response. Annu Rev Physiol. 2005;67:259-284. PMID: 15709959
[3] Raff H, Findling JW. A physiologic approach to diagnosis of the Cushing syndrome. Ann Intern Med. 2003;138(12):980-991. PMID: 12809455
[4] Chrousos GP. Stress and disorders of the stress system. Nat Rev Endocrinol. 2009;5(7):374-381. PMID: 19488073
