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High cortisol levels increase the risk of death from cardiovascular disease five-fold

Prevent Damage from Chronic Stress

High cortisol levels increase the risk of death from cardiovascular disease five-fold. Clinical evidence shows that several plant extracts reduce elevated cortisol.

Scientifically reviewed by: Gary Gonzalez, MD, in September 2024. Written by: Heather L. Makar.

When we face physical or emotional stress, the hormone cortisol helps us cope.

In the short term, that's a huge benefit. In the long term, it can be a disaster.

When cortisol remains persistently high, it can wreak havoc on our health, aging us faster, putting us at risk of numerous diseases, and shortening our lives.

In a population study, men with high cortisol levels faced a 63% increased risk of death and women with elevated cortisol levels had an 82% increased risk of death.1

In another study, the risk of death from cardiovascular disease escalated five-fold in those with high cortisol levels.2

Several plant extracts have been clinically shown to help reduce elevated cortisol levels. This may help prevent the damage inflicted by cortisol and potentially decrease risks of premature death.

Chronically Elevated Cortisol Is Deadly

Cortisol is a hormone produced primarily in the adrenal glands. Under normal circumstances, cortisol functions to regulate the body's metabolism of glucose.

It's often referred to as the "stress hormone" since it's also released in response to physical or emotional stress.

Cortisol levels normally fluctuate throughout the day, rising just before you wake in the morning and tapering off through the evening in preparation for sleep.3

However, chronic stress disrupts this daily rhythm, which may cause cortisol levels to remain persistently high.4,5

Cortisol levels also tend to rise in older age.6,7 The results can be deadly.

Chronically elevated cortisol speeds up the aging process through decreased immunity, increased inflammation, and dysregulated metabolism.8

High levels of cortisol are also associated with shortening of telomeres, the protective caps on the ends of chromosomes.9,10 Telomere shortening is associated with shorter lifespan.

One population study showed that elevated cortisol levels correlate with a significantly higher mortality risk. Men with high cortisol had a 63% increased risk of death, while women had an 82% increased risk.1

And in another study, the risk of death from cardiovascular disease jumped five-fold in those with high cortisol levels, regardless of their cardiovascular health history.2

Other studies confirm that those with elevated cortisol have higher mortality rates and a potentially increased risk for metabolic syndrome, cardiovascular disease, diabetes, and neurodegenerative disorders.6,11-15

Cortisol may also contribute to thinning hair, wrinkles, age spots, and slower healing of wounds.16-18

Plant Extracts That Help

Many people turn to anti-anxiety medications or other drugs to manage symptoms of chronic stress. But these often come with side effects and may do little to reduce chronically elevated cortisol, allowing the damage to continue.

Several plant extracts can reduce cortisol levels in humans, safely relieving stress and protecting against the hormone's long-term harm.

These include extracts of lychee fruit, green tea, Magnolia officinalis, and Phellodendron amurense.19,20

Lychee Lowers Cortisol

Lychee, a tropical fruit rich in health-promoting polyphenols, has the ability to fight oxidative stress and inflammation and lower cortisol levels.19,21,22

However, most lychee extracts contain long-chain polyphenols, severely limiting their absorption in the intestinal tract.

Scientists have developed a blend of lychee fruit and green tea that provides a low-molecular-size extract that is three to four times as bioavailable as regular lychee.19,21,23

In a clinical trial, healthy but sedentary young men who took 100 mg of the lychee-green tea extract blend for four weeks had a dramatic reduction in cortisol levels, compared to those who took a placebo.19

In another clinical trial, healthy male volunteers dipped their legs in hot water, a physical stressor. Those who had taken 100 mg of the lychee-green tea blend a half-hour earlier had significantly lower blood cortisol levels than those in a placebo group.21

In both studies, the men taking the extracts also had a significant reduction in serum levels of IL-1beta and IL-6, inflammatory cytokines that can cause cortisol levels to rise.

  

What You Need to Know

Reduce Cortisol for Better Health

  • Levels of the hormone cortisol rise during times of stress.
  • Chronically elevated cortisol weakens immunity and is associated with increased risk of chronic disease and death.
  • A lychee-green tea extract blend has been clinically shown to significantly reduce cortisol and markers of inflammation.
  • A blend of bark extracts from two trees, Magnolia officinalis and Phellodendron amurense, also reduced cortisol levels in clinical trials. In addition, it improved mood and lowered feelings of stress, anger, depression, and fatigue.
  • Combining a lychee-green tea blend with Magnolia-Phellodendron bark extracts may optimize their ability to lower cortisol levels, reduce stress and anxiety, and help prevent the damage chronic stress can do.

Stress-Relieving Bark Extracts

A combination of bark extracts from two trees, Magnolia officinalis and Phellodendron amurense, has been shown to reduce cortisol and decrease anxiety, without the side effects of prescription medications.24,25

In a study of participants with moderate-to-high stress levels, taking 250 mg of this extract combination twice daily (500 mg total) for four weeks resulted in an 18% reduction in salivary cortisol levels compared to those taking a placebo.25

Those in the extract group also reported a significant reduction in stress, compared to the placebo group, including a:25

  • 13% reduction in tension,
  • 20% reduction in depression,
  • 42% reduction in anger,
  • 31% reduction in fatigue,
  • 27% reduction in confusion,
  • 18% increase in vigor, and
  • 11% improvement in mood.

In another clinical trial, premenopausal women with anxiety who took 250 mg of the Magnolia-Phellodendron bark combination three times daily reported significantly lower anxiety scores after six weeks.24

Combining these bark extracts with the lychee-green tea blend may maximize their ability to lower cortisol levels, reducing the elevated risk of disease and death that comes with chronic stress.

Summary

Chronic elevated cortisol is a deadly issue.

Aging and chronic stress can raise cortisol levels and keep them high, increasing risk of illness and death.

A blend of lychee and green tea extracts has been clinically shown to lower cortisol levels.

A combination of bark extracts from the Magnolia officinalis and Phellodendron amurense trees has also been shown to reduce cortisol and lower anxiety and stress.

Together, these extracts may optimize cortisol reduction, potentially decreasing the risk of disease and premature death brought on by chronic stress.

If you have any questions on the scientific content of this article, please call a Life Extension Wellness Specialist at 1-866-864-3027.

References

  1. Schoorlemmer RM, Peeters GM, van Schoor NM, Lips P. Relationships between cortisol level, mortality and chronic diseases in older persons. Clin Endocrinol (Oxf). 2009;71(6):779-86.
  2. Vogelzangs N, Beekman AT, Milaneschi Y, et al. Urinary cortisol and six-year risk of all-cause and cardiovascular mortality. J Clin Endocrinol Metab. 2010;95(11):4959-64.
  3. Available at: https://www.ncbi.nlm.nih.gov/books/NBK538239/. Accessed March 13, 2024.
  4. Hannibal KE, Bishop MD. Chronic stress, cortisol dysfunction, and pain: a psychoneuroendocrine rationale for stress management in pain rehabilitation. Phys Ther. 2014;94(12):1816-25.
  5. Hassamal S. Chronic stress, neuroinflammation, and depression: an overview of pathophysiological mechanisms and emerging anti-inflammatories. Front Psychiatry. 2023;14:1130989.
  6. Yiallouris A, Tsioutis C, Agapidaki E, et al. Adrenal Aging and Its Implications on Stress Responsiveness in Humans. Front Endocrinol (Lausanne). 2019;10:54.
  7. Moffat SD, An Y, Resnick SM, et al. Longitudinal Change in Cortisol Levels Across the Adult Life Span. J Gerontol A Biol Sci Med Sci. 2020;75(2):394-400.
  8. Stamou MI, Colling C, Dichtel LE. Adrenal aging and its effects on the stress response and immunosenescence. Maturitas. 2023;168:13-9.
  9. Burgin D, Varghese N, Eckert A, et al. Higher hair cortisol concentrations associated with shorter leukocyte telomere length in high-risk young adults. Sci Rep. 2022;12(1):11730.
  10. Tomiyama AJ, O'Donovan A, Lin J, et al. Does cellular aging relate to patterns of allostasis? An examination of basal and stress reactive HPA axis activity and telomere length. Physiol Behav. 2012;106(1):40-5.
  11. Hackett RA, Kivimaki M, Kumari M, Steptoe A. Diurnal Cortisol Patterns, Future Diabetes, and Impaired Glucose Metabolism in the Whitehall II Cohort Study. J Clin Endocrinol Metab. 2016;101(2):619-25.
  12. Aladio JM, Costa D, Matsudo M, et al. Cortisol-Mediated Stress Response and Mortality in Acute Coronary Syndrome. Curr Probl Cardiol. 2021;46(3):100623.
  13. Mazgelytė E, Mažeikienė A, Burokienė N, et al. Association between hair cortisol concentration and metabolic syndrome. Open Med (Wars). 2021;16(1):873-81.
  14. Iob E, Steptoe A. Cardiovascular Disease and Hair Cortisol: a Novel Biomarker of Chronic Stress. Curr Cardiol Rep. 2019;21(10):116.
  15. Ouanes S, Popp J. High Cortisol and the Risk of Dementia and Alzheimer's Disease: A Review of the Literature. Front Aging Neurosci. 2019;11:43.
  16. Thom E. Stress and the Hair Growth Cycle: Cortisol-Induced Hair Growth Disruption. J Drugs Dermatol. 2016;15(8):1001-4.
  17. Noordam R, Gunn DA, Tomlin CC, et al. Cortisol serum levels in familial longevity and perceived age: the Leiden longevity study. Psychoneuroendocrinology. 2012;37(10):1669-75.
  18. van Drielen K, Gunn DA, Noordam R, et al. Disentangling the effects of circulating IGF-1, glucose, and cortisol on features of perceived age. Age (Dordr). 2015;37(3):9771.
  19. Lee JB, Shin YO, Min YK, Yang HM. The effect of Oligonol intake on cortisol and related cytokines in healthy young men. Nutr Res Pract. 2010;4(3):203-7.
  20. Talbott SM, Talbott JA, Pugh M. Effect of Magnolia officinalis and Phellodendron amurense (Relora®) on cortisol and psychological mood state in moderately stressed subjects. J Int Soc Sports Nutr. 2013;10(1):37.
  21. Shin Y-O, Lee J-B, Min Y-K, Yang H-M. Effect of oligonol intake on cortisol and cytokines, and body temperature after leg immersion into hot water. Food Science and Biotechnology. 2011;20(3):659-63.
  22. Nagasawa J, Uchimaru J. Oxidative stress in hypobaric and normobaric hypoxia and antioxidant effect of Oligonol. Japan J Mountain Med. 2010;30:118-24.
  23. Miura T, Kitadate K, Fujii H. The Function of the Next Generation Polyphenol, "Oligonol". Biotechnology in Functional Foods and Nutraceuticals: CRC Press; 2010:91-102.
  24. Kalman DS, Feldman S, Feldman R, et al. Effect of a proprietary Magnolia and Phellodendron extract on stress levels in healthy women: a pilot, double-blind, placebo-controlled clinical trial. Nutr J. 2008;7:11.
  25. Talbott SM, Talbott JA, Pugh M. Effect of Magnolia officinalis and Phellodendron amurense (Relora(R)) on cortisol and psychological mood state in moderately stressed subjects. J Int Soc Sports Nutr. 2013;10(1):37.