Why is Your “Stress Hormone” Essential for Experiencing Abundant Health

When people hear the word cortisol, they often associate it with stress, anxiety, weight gain, fatigue or burnout. While chronically high cortisol contribute to health problems, cortisol itself is not the enemy. In fact, cortisol is a hormone that is absolutely essential for good and abundant health because it plays a vital role in keeping the body functioning properly every day.

Produced by the adrenal glands, cortisol is often called the “stress hormone” because it helps the body respond to physical and emotional stress. However, its benefits go far beyond stress management. From regulating energy levels to supporting brain function, cortisol is one of the body’s most important hormones.

What Is Cortisol?

Cortisol is a steroid hormone released by the adrenal glands, which sit on top of the kidneys. Its production is controlled by the brain (through the hypothalamic-pituitary-adrenal (HPA) axis) and acts as a messenger, influencing many systems in the body, including sleep, metabolism, immune response, blood pressure, and mood.

1. Sleep: Cortisol follows a natural daily rhythm known as the circadian rhythm. Cortisol levels naturally rise and fall throughout the day, typically peaking in the morning to help you wake up and gradually declining at night to prepare you for sleep. Healthy cortisol patterns help control wakefulness and sleep.

In the morning, cortisol rises:

1. Increasing alertness and wakefulness

2. Preparing the body for daily activity

At night, cortisol level declines, allowing melatonin to support restful sleep. Balanced cortisol levels are essential for maintaining healthy sleep patterns and overall recovery of health.

2. Stress: Cortisol helps the body handle stressful situations. When you encounter danger, pressure, toxin overload, reduced blood flow to any part of the body, or emotional stress, cortisol works along with adrenaline to prepare your body for action: 

1. Increasing alertness

2. Improving reaction time

3. Boosting energy availability

4. Enhancing focus and concentration

Without cortisol, the body would struggle to respond effectively to emergencies or challenging situations.

3. Energy Levels: Cortisol helps regulate how the body uses carbohydrates, fats, and proteins. It ensures that enough glucose is available in the bloodstream to fuel the brain and muscles. During periods of fasting, exercise, or stress, cortisol helps maintain stable energy levels by:

1. Stimulating glucose production

2. Supporting fat metabolism

3. Preventing blood sugar from dropping too low

This is especially important for maintaining stamina and mental clarity throughout the day.

4. Controls Inflammation: Although excessive cortisol levels suppress immunity, normal cortisol levels play a beneficial role in regulating inflammation. Cortisol helps by:

1. Preventing excessive inflammatory responses

2. Protecting tissues from damage

3. Supporting recovery after illness or injury

   
   

Many anti-inflammatory medications, such as corticosteroids, are designed to mimic cortisol’s natural effects.

5. Brain Function and Memory: Cortisol influences several aspects of brain health, including:

1. Memory formation

2. Motivation

3. Emotional regulation

4. Attention and focus: Short-term increases in cortisol sharpen mental performance during important situations, such as exams, presentations, or athletic competitions.

5. Learning and decision-making: Balanced cortisol levels also help maintain good communication between different regions of the brain involved in learning and decision-making.

6. Blood Pressure and Cardiovascular Function: Cortisol plays an important role in helping the cardiovascular system function properly. It helps regulate blood vessel tone and supports healthy blood pressure levels. Without adequate cortisol, people may experience:

1. Low blood pressure

2. Fatigue

3. Weakness

4. Dizziness

Cortisol plays a critical role in overall circulation and activities of daily living. Improve circulation and you will improve your health.

7. Immune System: Cortisol helps coordinate immune activity by preventing the immune system from becoming overactive. This balance is important because uncontrolled immune responses can damage healthy tissues and can contribute to auto-immune diseases.

The Importance of Balance and Temperance

While cortisol offers many benefits, problems arise when levels remain elevated for long periods due to chronic stress, negativity or other negative emotions, poor sleep, unhealthy diet (eating or drinking food-like substances instead of real food, eating too frequently, eating too much, eating sporadically or before bed), dehydration, lack of sunlight and fresh air, poor circulation due to lack of movement and exercise, and use of caffeine [coffee, energy drinks, chocolate, medication (Excedrin, etc.), soda, etc.].

Persistently high cortisol levels may contribute to:

1. Weight gain

2. Anxiety and depression

3. Sleep disturbances and recovery

4. High blood pressure and other diseases of poor circulation

5. Reduced immune function with increased risk of autoimmune disease.

Persistently low cortisol levels may lead to: 

1. Fatigue and tiredness

2. Weakness

3. Low motivation

4. Hormonal imbalance

   
   

The goal is not to eliminate cortisol but to maintain healthy, balanced levels through:

1. Regular exercise in the sunlight and fresh air

2. Quality sleep with moments of relaxation throughout the day 

3. Stress management with healthy thoughts and thinking patterns; avoiding negativity, developing health relationships

4. Proper nutrition

5. Proper hydration

6. Balance and temperance: Avoiding that which is harmful and using in moderation that which is good.

7. Cooperate with God and His health plan (Psalm 67:1-2 KJV).

Cortisol often receives negative attention, but it is one of the body’s most important hormones. Rather than viewing cortisol as harmful, see it as a powerful tool the body uses to stay balanced and responsive. When properly regulated, cortisol helps us wake up energized, stay focused, recover from challenges, and adapt to life’s daily demands.

If you would like help managing cortisol and inflammatory levels, schedule a free interview to see if our Start a New YOU! Program is a right fit for you.

Wishing you Abundant Health Now and Always.

Blue Skies,

Dana

Dana West, RDN, LD, ACLMDIP thrives on helping her amazing clients get a new lease on life by embracing health and conquering disease, through learning to cooperate with God, Our Chief Physician and His saving health plan (Psalm 67:1-2 KJV), one step at a time, so they can live with renewed energy and enthusiasm doing all the things they love to do again, just as God intended for them.

You can get a new lease on life too, in her Start a New YOU!® Online Program. Details Here

References:

Chan, S., & Debono, M. (2010). Replication of cortisol circadian rhythm: New advances in hydrocortisone replacement therapy. Therapeutic Advances in Endocrinology and Metabolism, 1(3), 129–138. https://doi.org/10.1177/2042018810380214

Lange, T., Dimitrov, S., & Born, J. (2010). Effects of sleep and circadian rhythm on the human immune system. Annals of the New York Academy of Sciences, 1193(1), 48–59. https://doi.org/10.1111/j.1749-6632.2009.05300.x

Leliavski, A., Dumbell, R., Ott, V., & Oster, H. (2015). Adrenal clocks and the role of adrenal hormones in the regulation of circadian physiology. Journal of Biological Rhythms, 30(1), 20–34. https://doi.org/10.1177/0748730414553971

Mok, W. H., et al. (2024). Circadian immunity from bench to bedside. Journal of Clinical Investigation, 134(3). https://doi.org/10.1172/JCI175706

O'Byrne, N. A., Yuen, F., Butt, W. Z., & Liu, P. Y. (2021). Sleep and circadian regulation of cortisol: A short review. Current Opinion in Endocrine and Metabolic Research, 18, 178–186. https://doi.org/10.1016/j.coemr.2021.03.011

Russell, G., & Lightman, S. (2019). The human stress response. Nature Reviews Endocrinology, 15(9), 525–534. https://doi.org/10.1038/s41574-019-0228-0

Shimba, A., & Ikuta, K. (2020). Glucocorticoids regulate circadian rhythm of innate and adaptive immunity. Frontiers in Immunology, 11, Article 2143. https://doi.org/10.3389/fimmu.2020.02143

Turek, F. W., & Gillette, M. U. (2004). Melatonin, sleep, and circadian rhythms: Rationale for development of specific melatonin agonists. Sleep Medicine, 5(6), 523–532. https://doi.org/10.1016/j.sleep.2004.07.009

Wright, K. P., Jr., Drake, A. L., Frey, D. J., Fleshner, M., Desouza, C. A., Gronfier, C., & Czeisler, C. A. (2015). Influence of sleep deprivation and circadian misalignment on cortisol, inflammatory markers, and cytokine balance. Brain, Behavior, and Immunity, 47, 24–34. https://doi.org/10.1016/j.bbi.2015.01.004