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Cortisol Morning - AM60
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Cortisol Morning - AM60
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Cortisol Morning - AM60

Cortisol, a glucocorticoid hormone produced in the adrenal cortex, plays a crucial role in the body's stress response system.  

The cortisol awakening response (CAR) is the significant rise in cortisol levels within 30 minutes of waking, often measured through saliva samples.  This response, peaking about 30 minutes after waking, reflects the health of the hypothalamic-pituitary-adrenal (HPA) axis and is essential for stress regulation.

The CAR is expected to fall back to near-waking levels within about 60 minutes of waking.   

Abnormal CAR patterns can indicate issues like chronic stress, PTSD, and burnout. 

Accurate assessment of AM60 cortisol levels helps in understanding and managing various physiological and psychological conditions.

What is Cortisol?  [24.] 

Classified as a glucocorticoid hormone, cortisol is a crucial component of the body's stress response system.

It is synthesized from cholesterol through a series of enzymatic reactions in the zona fasciculata of the adrenal cortex.  Cortisol is produced in the steroidogenesis pathway, which encompasses the biosynthesis of steroid hormones from cholesterol. 

What is AM60 Cortisol?

AM60 Cortisol levels refer to cortisol levels 60 minutes after waking.  AM60 Cortisol is often tested in saliva.  

Accurate and reliable measurement of AM60 cortisol levels is an essential component in assessing the cortisol awakening response, or CAR.

Clinical Significance of the Cortisol Awakening Response

In healthy individuals, cortisol is expected to rise in the morning by as much as 50%, peak approximately 30 minutes after waking, and fall back to morning waking levels within 60 minutes of waking. [13.]   

This is called the Cortisol Awakening Response, or CAR, and it provides valuable insight into the functioning of the HPA axis.  [21.]

The AM60 cortisol measurement is an essential measurement in assessing the CAR.  

The CAR is clinically relevant because it reflects HPA axis function, which is associated with various physiological and psychological factors.  

Research suggests that a robust CAR is indicative of healthy stress regulation and adaptation, while blunted or exaggerated CARs are linked to conditions such as chronic stress, PTSD, depression, chronic fatigue, and burnout.  [9., 13., 21., 22., 26., 28.]

Assessing CAR through laboratory testing can aid in identifying dysregulations in the hypothalamic-pituitary-adrenal (HPA) axis, which plays a central role in the body's stress response system.  [1.]

Symptoms of High Cortisol Levels in the Morning

Weight Gain, Especially Around the Abdomen  [10.]

One of the most common symptoms associated with high morning cortisol levels is weight gain, particularly in the abdominal region.  Cortisol plays a role in regulating metabolism and fat distribution, and chronically elevated cortisol leads to an increase in visceral fat accumulation around the midsection.

Elevated cortisol levels are also associated with increased appetite and cravings for high-calorie foods. 

Fatigue and Low Energy  [11.]

Persistently high cortisol levels can disrupt the body's natural energy cycles, leading to feelings of fatigue and low energy throughout the day. This can make it challenging to perform daily activities and maintain productivity, further exacerbating stress levels and perpetuating the cycle of cortisol dysregulation.

Difficulty Concentrating or "Brain Fog"  [17.]

High cortisol levels can interfere with cognitive function, leading to difficulties in concentration, memory, and decision-making. This "brain fog" can be particularly problematic in work or academic settings, where mental clarity and focus are essential.

Headaches  [27.]

Elevated cortisol levels have been linked to an increased frequency and severity of headaches, including migraines. The exact mechanisms behind this association are not fully understood, but it is believed that cortisol may play a role in sensitizing pain pathways and triggering inflammatory responses.

Sleep Disturbances  [10.] 

Cortisol levels are closely tied to the body's sleep-wake cycle, and imbalances can contribute to sleep disturbances such as insomnia, difficulty falling asleep, or frequent awakenings during the night. Poor sleep quality, in turn, can further exacerbate cortisol dysregulation, creating a vicious cycle.

Irritability and Mood Swings  [7.]

High cortisol levels can impact mood and emotional regulation, leading to increased irritability, anxiety, and mood swings. 

Depression diagnoses have been correlated with increased cortisol levels.  People with anxiety also demonstrate a blunted stress response.  This can strain personal and professional relationships, as well as contribute to feelings of stress and overwhelm.

Laboratory Assessment of AM60 Cortisol

Sample Types

Two primary methods are used for AM60 cortisol testing: serum/plasma cortisol assays and salivary cortisol assays. 

Serum or plasma cortisol assays measure the total amount of cortisol in the bloodstream, providing a snapshot of cortisol levels at the time of sample collection.  

Salivary cortisol assays, on the other hand, measure the bioavailable or free cortisol levels, which are believed to better reflect the physiologically active form of the hormone.

Laboratory Testing, Sample Collection and Timing

The CAR is often assessed via saliva samples of cortisol immediately upon waking, 30 minutes after waking,and 60 minutes after waking.  Alternatively, blood samples may be used, but this requires multiple blood draws within a short time. 

The timing of sample collection is critical for accurate AM60 cortisol measurement, as cortisol levels can fluctuate rapidly in response to various stimuli. 

Samples must be collected within 60 minutes of awakening, with the recommended window being as narrow as possible to minimize variability. 

Factors such as sleep quality, stress levels, and certain medications can influence cortisol levels and should be taken into account during sample collection.

Interpretation of AM60 Cortisol Results

Optimal Levels of AM60 Cortisol

The pattern of the CAR provides the most clinical information.  Optimally, levels of AM30 cortisol are expected to rise by about 50% from waking cortisol levels, then fall back to roughly the levels seen upon waking about 60 minutes after waking (as evidenced in the AM60 cortisol level).  

This indicates a healthy HPA axis response.  Increased or decreased levels may have clinical relevance, as discussed below.  

What is a Normal Cortisol Level for a Woman?

Cortisol levels for women may vary through the course of her lifetime depending on hormone fluctuations, stress levels, pregnancy, lifestyle factors, and many other influences.  Ideally, a woman maintains the expected diurnal rhythm of cortisol.  

Women who are symptomatic for high or low cortisol levels should consult a healthcare professional for further assessment.  

Elevated Levels of AM60 Cortisol  [2., 3., 12., 28.] 

 An elevated cortisol awakening response (CAR) has been linked to various physiological and psychological factors.  

Chronic stress, worry, work overload, and acute stress exposure are known to contribute to a larger CAR.  [2., 3.]  

Additionally, research suggests that an elevated CAR may be a biological factor associated with impairments in cognitive functions such as error processing, conscious error perception, and subsequent behavioral adjustment in healthy populations.  [28.]

Furthermore, an abnormally high CAR could potentially indicate underlying neurological conditions: individuals with bilateral or unilateral hippocampus damage and hippocampal atrophy tend to lack a normal CAR, suggesting that an elevated CAR may be indicative of hippocampal dysfunction or atrophy, which can have implications for cognitive impairment.  [28.]

Certain environmental and lifestyle factors have also been shown to influence CAR levels. Morning light exposure, high-intensity exercise, greater physical activity levels, and short-term sleep deprivation have all been associated with an increase in CAR.  [3.]

It is important to note that the clinical significance of an elevated CAR should be interpreted in the context of an individual's overall health status, as well as other relevant biomarkers and diagnostic criteria.  

The CAR alone is not a definitive diagnostic tool but rather a potential indicator of underlying physiological or psychological conditions that warrant further investigation and evaluation.

Decreased Levels of AM60 Cortisol

A decreased or blunted cortisol awakening response (CAR) has been associated with various clinical conditions and psychological states including fatigue or pain.  [8.]

It has also been associated with conditions such as poorer general health, AIDS, cancer, post-traumatic stress disorder, chronic stress and burnout.  [8.]

It is important to note that the clinical significance of CAR abnormalities should be interpreted in the context of the individual's overall clinical presentation, as well as other relevant biomarkers and diagnostic criteria.  

Strategies to Support a Healthy CAR 

  • Practice mindfulness-based stress reduction techniques, including meditation, deep breathing exercises, and yoga.  [25.]
  • Engage in regular physical activity and ensure adequate sleep each night to support cortisol regulation.  [4.]
  • Maintain a balanced diet rich in whole foods, while limiting caffeine, alcohol, and sugar intake to stabilize cortisol levels.
  • Foster a supportive social network and seek professional counseling or therapy to address underlying stressors effectively.
  • Consume a balanced diet rich in fruits, vegetables, whole grains, lean proteins, and healthy fats to provide essential nutrients for adrenal health and cortisol regulation.
  • Incorporate foods high in magnesium, such as leafy greens, nuts, seeds, and legumes, which may help reduce cortisol levels and promote relaxation.
  • Avoid excessive caffeine, refined sugars, and processed foods, as they can spike cortisol levels and contribute to chronic stress.  [5., 6., 15.] 

Supplements To Support A Healthy CAR:

  • Herbal adaptogens: incorporate adaptogenic herbs like ashwagandha and holy basil into your routine to regulate cortisol levels and enhance stress resilience.  [14., 19.] 
  • Explore supplements such as phosphatidylserine to support adrenal health, reduce inflammation and maintain cortisol balance.  [23.]
  • Vitamin C: Supports adrenal gland function and cortisol production.  [18.]
  • B Vitamins (B5, B6, B12): Essential for adrenal hormone synthesis and energy metabolism.
  • Magnesium: Helps regulate cortisol levels and supports adrenal gland function.  [20.]
  • Zinc: Supports immune function and aids in adrenal hormone production.
  • Omega-3 fatty acids: Have anti-inflammatory properties and support adrenal health.  [16.]

Prior to initiating any new supplements it's crucial to consult with a healthcare provider, particularly if you have preexisting health conditions or are currently on medications, to guarantee safety and effectiveness.

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What's 
Cortisol Morning - AM60
?
Cortisol Morning - AM60 is a test that measures the level of cortisol, a vital hormone, in your body during the morning hours, specifically around 60 minutes after you wake up. Produced by your adrenal glands, cortisol is often referred to as the "stress hormone" because it helps your body respond to stress. However, it's not just about stress - cortisol also plays a key role in various bodily functions. It helps regulate your body's metabolism, immune response, blood sugar levels, and even your memory formulation. It also plays a significant role in the "fight or flight" response, preparing your body to react to potential danger. The AM60 test is important because cortisol levels naturally fluctuate throughout the day, and they are usually at their highest within the first hour after waking. This test helps to ensure your cortisol levels are following the expected pattern, contributing to your overall health and well-being.
If Your Levels Are High
High levels of cortisol in the AM60 test could indicate a variety of conditions or factors. One possibility is Cushing's syndrome, a condition caused by prolonged exposure to high levels of cortisol, often due to a tumor in the pituitary or adrenal glands. Another potential cause is chronic stress, as your body produces more cortisol to cope with long-term, high-stress situations. Certain medications, such as corticosteroids or hormonal contraceptives, can also increase cortisol levels. Additionally, conditions like depression, alcoholism, malnutrition, or physical trauma can lead to elevated cortisol. It's important to note that while high cortisol levels can indicate these conditions, they are not definitive and other tests may be needed for a complete diagnosis.
Symptoms of High Levels
Symptoms of high levels of cortisol may include weight gain, particularly around the abdomen and face, thinning skin that bruises easily, muscle weakness, mood swings, increased thirst and urination, high blood pressure, and osteoporosis.
If Your Levels are Low
Low levels of cortisol in the AM60 test could indicate a condition called Addison's disease, which is a disorder where your adrenal glands don't produce enough hormones. It could also suggest adrenal insufficiency, a condition where the adrenal glands aren't functioning properly. Certain medications, like prednisone or hydrocortisone, can also lower cortisol levels. Chronic fatigue syndrome and hypopituitarism, a rare condition where the pituitary gland doesn't produce enough hormones, can also result in lower cortisol levels. It's important to note that cortisol levels can also be influenced by factors like physical stress, emotional stress, and illness.
Symptoms of Low Levels
Symptoms of low levels of cortisol may include fatigue, muscle weakness, loss of appetite, weight loss, low blood pressure, and abdominal pain.
See References

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[2.] Berger, M., Leicht, A., Slatcher, A. et al. Cortisol Awakening Response and Acute Stress Reactivity in First Nations People. Sci Rep 7, 41760 (2017). https://doi.org/10.1038/srep41760

[3.] Cortisol Awakening Response - an overview | ScienceDirect Topics. www.sciencedirect.com. https://www.sciencedirect.com/topics/medicine-and-dentistry/cortisol-awakening-response

[4.] De Nys L, Anderson K, Ofosu EF, Ryde GC, Connelly J, Whittaker AC. The effects of physical activity on cortisol and sleep: A systematic review and meta-analysis. Psychoneuroendocrinology. 2022 Sep;143:105843. doi: 10.1016/j.psyneuen.2022.105843. Epub 2022 Jun 24. PMID: 35777076.

[5.] Di Polito N, Stylianakis AA, Richardson R, Baker KD. Real-World Intake of Dietary Sugars Is Associated with Reduced Cortisol Reactivity Following an Acute Physiological Stressor. Nutrients. 2023 Jan 1;15(1):209. doi: 10.3390/nu15010209. PMID: 36615866; PMCID: PMC9823716.

[6.] Duong M, Cohen JI, Convit A. High cortisol levels are associated with low quality food choice in type 2 diabetes. Endocrine. 2012 Feb;41(1):76-81. doi: 10.1007/s12020-011-9527-5. Epub 2011 Oct 9. PMID: 21983796; PMCID: PMC3253931.

[7.] Dziurkowska E, Wesolowski M. Cortisol as a Biomarker of Mental Disorder Severity. J Clin Med. 2021 Nov 8;10(21):5204. doi: 10.3390/jcm10215204. PMID: 34768724; PMCID: PMC8584322.

[8.] Fabian LA, McGuire L, Page GG, Goodin BR, Edwards RR, Haythornthwaite J. The association of the cortisol awakening response with experimental pain ratings. Psychoneuroendocrinology. 2009 Sep;34(8):1247-51. doi: 10.1016/j.psyneuen.2009.03.008. Epub 2009 Apr 17. PMID: 19375866; PMCID: PMC2740898.

[9.] Fries E, Dettenborn L, Kirschbaum C. The cortisol awakening response (CAR): facts and future directions. Int J Psychophysiol. 2009 Apr;72(1):67-73. doi: 10.1016/j.ijpsycho.2008.03.014. Epub 2008 Sep 30. PMID: 18854200.

[10.] Hirotsu C, Tufik S, Andersen ML. Interactions between sleep, stress, and metabolism: From physiological to pathological conditions. Sleep Sci. 2015 Nov;8(3):143-52. doi: 10.1016/j.slsci.2015.09.002. Epub 2015 Sep 28. PMID: 26779321; PMCID: PMC4688585.

[11.] Jones C, Gwenin C. Cortisol level dysregulation and its prevalence-Is it nature's alarm clock? Physiol Rep. 2021 Jan;8(24):e14644. doi: 10.14814/phy2.14644. PMID: 33340273; PMCID: PMC7749606.

[12.] Kudielka BM, Kirschbaum C. Awakening cortisol responses are influenced by health status and awakening time but not by menstrual cycle phase. Psychoneuroendocrinology. 2003 Jan;28(1):35-47. doi: 10.1016/s0306-4530(02)00008-2. PMID: 12445835.

[13.] Lim WT, Torpy DJ. Chronic Fatigue Syndrome. [Updated 2023 Aug 30]. In: Feingold KR, Anawalt B, Blackman MR, et al., editors. Endotext [Internet]. South Dartmouth (MA): MDText.com, Inc.; 2000-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK279099/

[14.] Lopresti AL, Smith SJ, Metse AP, Drummond PD. A randomized, double-blind, placebo-controlled trial investigating the effects of an Ocimum tenuiflorum (Holy Basil) extract (HolixerTM) on stress, mood, and sleep in adults experiencing stress. Front Nutr. 2022 Sep 2;9:965130. doi: 10.3389/fnut.2022.965130. PMID: 36185698; PMCID: PMC9524226.

[15.] Lovallo WR, Whitsett TL, al'Absi M, Sung BH, Vincent AS, Wilson MF. Caffeine stimulation of cortisol secretion across the waking hours in relation to caffeine intake levels. Psychosom Med. 2005 Sep-Oct;67(5):734-9. doi: 10.1097/01.psy.0000181270.20036.06. PMID: 16204431; PMCID: PMC2257922.

[16.] Madison AA, Belury MA, Andridge R, Renna ME, Rosie Shrout M, Malarkey WB, Lin J, Epel ES, Kiecolt-Glaser JK. Omega-3 supplementation and stress reactivity of cellular aging biomarkers: an ancillary substudy of a randomized, controlled trial in midlife adults. Mol Psychiatry. 2021 Jul;26(7):3034-3042. doi: 10.1038/s41380-021-01077-2. Epub 2021 Apr 20. PMID: 33875799; PMCID: PMC8510994.

[17.] Ouanes S, Popp J. High Cortisol and the Risk of Dementia and Alzheimer’s Disease: A Review of the Literature. Frontiers in Aging Neuroscience. 2019;11(43). doi:https://doi.org/10.3389/fnagi.2019.00043

[18.] Peters EM, Anderson R, Nieman DC, Fickl H, Jogessar V. Vitamin C supplementation attenuates the increases in circulating cortisol, adrenaline and anti-inflammatory polypeptides following ultramarathon running. Int J Sports Med. 2001 Oct;22(7):537-43. doi: 10.1055/s-2001-17610. PMID: 11590482.

[19.] Remenapp A, Coyle K, Orange T, et al. Efficacy of Withania somnifera supplementation on adult’s cognition and mood. Journal of Ayurveda and Integrative Medicine. 2022;13(2):100510. doi:https://doi.org/10.1016/j.jaim.2021.08.003

[20.] Schutten JC, Joris PJ, Minović I, Post A, van Beek AP, de Borst MH, Mensink RP, Bakker SJL. Long-term magnesium supplementation improves glucocorticoid metabolism: A post-hoc analysis of an intervention trial. Clin Endocrinol (Oxf). 2021 Feb;94(2):150-157. doi: 10.1111/cen.14350. Epub 2020 Oct 26. PMID: 33030273; PMCID: PMC7821302.

[21.] Stalder T, Kirschbaum C, Kudielka BM, Adam EK, Pruessner JC, Wüst S, Dockray S, Smyth N, Evans P, Hellhammer DH, Miller R, Wetherell MA, Lupien SJ, Clow A. Assessment of the cortisol awakening response: Expert consensus guidelines. Psychoneuroendocrinology. 2016 Jan;63:414-32. doi: 10.1016/j.psyneuen.2015.10.010. Epub 2015 Oct 20. PMID: 26563991.

[22.] Stanczykiewicz Bartłomiej Stańczykiewicz, Bogudzinska Bogna Bogudzińska, Kowalski KE, Misiak B. The association between depression and the cortisol awakening response is moderated by loneliness in men from a non-clinical sample. Psychoneuroendocrinology. 2024;160:106924-106924. doi:https://doi.org/10.1016/j.psyneuen.2023.106924

[23.] Starks MA, Starks SL, Kingsley M, Purpura M, Jäger R. The effects of phosphatidylserine on endocrine response to moderate intensity exercise. J Int Soc Sports Nutr. 2008 Jul 28;5:11. doi: 10.1186/1550-2783-5-11. PMID: 18662395; PMCID: PMC2503954.

[24.] Thau L, Gandhi J, Sharma S. Physiology, Cortisol. [Updated 2023 Aug 28]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK538239/ 

[25.] Turakitwanakan W, Mekseepralard C, Busarakumtragul P. Effects of mindfulness meditation on serum cortisol of medical students. J Med Assoc Thai. 2013 Jan;96 Suppl 1:S90-5. PMID: 23724462.

[26.] Wessa M, Rohleder, Kirschbaum C, Flor H.  Altered cortisol awakening response in posttraumatic stress disorder. Psychoneuroendocrinology. 2006;31(2):209-215. doi:https://doi.org/10.1016/j.psyneuen.2005.06.010

[27.] Woldeamanuel YW, Sanjanwala BM, Cowan RP. Endogenous glucocorticoids may serve as biomarkers for migraine chronification. Ther Adv Chronic Dis. 2020 Jul 21;11:2040622320939793. doi: 10.1177/2040622320939793. PMID: 32973989; PMCID: PMC7495027.

[28.] Wüst S, Wolf J, Hellhammer DH, Federenko I, Schommer N, Kirschbaum C. The cortisol awakening response - normal values and confounds. Noise Health. 2000;2(7):79-88. PMID: 12689474.

[28.] Zhang, L., Duan, H., Qin, S., Yuan, Y., Buchanan, T. W., Zhang, K., & Wu, J. (2015). High cortisol awakening response is associated with impaired error monitoring and decreased post-error adjustment. Stress, 18(5), 561–568. https://doi.org/10.3109/10253890.2015.1058356

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Cortisol Morning - AM60

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