Emerging scientific findings suggest that daily meditation and stress management may influence how cancer behaves within the body. Early laboratory research presented in the United States indicates that lowering cortisol, commonly known as the stress hormone, could potentially reduce the ability of cancer cells to spread.
This article explores the original research, explains cortisol, and considers what the findings may mean for patients.
The Original Source: Research Presented at AAAS
The study was presented at a meeting of the American Association for the Advancement of Science (AAAS) in Phoenix, Arizona and reported by Kaya Burgess in The Times.
Further information about the conference can be found via the official AAAS website:
American Association for the Advancement of Science
The research was conducted by Dr Kimberly Bussey of Midwestern University with medical student Cassidy Kennedy. Importantly, these were early laboratory studies involving cancer cells rather than patient clinical trials.
What Is Cortisol?
Cortisol is a steroid hormone produced by the adrenal glands. It regulates metabolism, immune response, blood pressure and the body’s reaction to stress.
Normally, cortisol rises in the morning and falls throughout the day. Chronic stress can disrupt this rhythm, leading to persistently elevated levels.
For a medically reviewed explanation of cortisol, see:
Cortisol: What It Is and What It Does – Cleveland Clinic
Persistently high cortisol has been associated with suppressed immunity and inflammation. This new research suggests it may also directly influence cancer cell behaviour.
What Did the Study Show?
Dr Bussey’s team grew cancer cells in three laboratory conditions:
- A control group with no added cortisol.
- Cells exposed to cortisol continuously for four weeks.
- Cells exposed temporarily before cortisol was removed.
The findings suggested prolonged cortisol exposure made cancer cells:
- More resistant to treatment.
- More motile, meaning more able to move and potentially spread.
- More stem cell like, increasing adaptability and survival.
The researchers also observed persistent changes in gene expression, indicating that cortisol may influence long term cancer cell behaviour.
These findings remain preliminary and require broader study across different cancer types.
Stress, Cancer and Treatment Response
Psychosocial stress has long been studied in oncology, particularly its impact on the immune system. This research shifts attention to cortisol’s direct effect on tumour cells.
Living with cancer understandably generates stress. Medical uncertainty, treatment side effects and daily pressures can compound emotional strain. The suggestion is not that stress causes cancer in isolation, but that sustained stress may create conditions that make disease more aggressive or resistant.
There are also early indications that high cortisol levels could interfere with the effectiveness of some cancer drugs, although further research is required.
Can Meditation Help?
Meditation and mindfulness practices are recognised tools for reducing stress and lowering cortisol levels.
Practical steps recommended include:
- Daily meditation, journaling or deep breathing.
- Regular exercise where medically appropriate.
- Spending time outdoors.
- Prioritising sleep.
- Simplifying non essential obligations.
Dr Bussey suggested beginning and ending the day with stress reducing practices to support resilience and improve sleep quality.
Meditation is not a substitute for medical treatment. However, it may form part of a broader strategy to support wellbeing alongside conventional cancer therapy.
It really is worth a try
The study does not prove that meditation prevents cancer from spreading. It does not suggest stress alone determines cancer outcomes. What it highlights is the complex biological interaction between hormones and tumour cells.
Managing stress cannot eliminate disease, but it may contribute positively to overall health and potentially to treatment response. As further clinical trials develop, we may gain clearer answers about the role cortisol plays in cancer progression.
For now, daily mindfulness remains a low risk practice that may support both psychological and physical wellbeing during cancer treatment.
General cancer diagnosis and clinical negligence posts that include bowel cancer context
• What Are the 5 Most Common Mis-diagnosis of Cancer? – broader look at cancer misdiagnosis including bowel cancer relevance.
• Medical Malpractice: How Small Mistakes Can Lead to Devastating Cancer Outcomes – explains how delay and misdiagnosis affect cancer outcomes generally.
• Cancer Death Rates 60% Higher in the Poorest Areas of the UK – discusses geographical disparities in cancer diagnosis and outcomes, including bowel cancer risk factors.
• Cancer Survival Gains in the UK Have Slowed (Experts Issue Warning) – analysis of UK cancer survival trends and the importance of early detection for cancers such as bowel cancer.
• Missed Cancer Diagnosis Claims UK – guide to missed cancer diagnosis claims, relevant to bowel cancer misdiagnosis or delay.
• Delay in Cancer Diagnosis Often Detected at Later Stages – explains why delayed diagnosis matters and the impact on survival.
