Could Mindfulness De-Stress Your Immune System?

For many of us, the beginning of a new year represents a clean slate and the chance to adopt healthier habits for self-improvement.

Often, when we think of bettering ourselves, we take a more physical approach, with typical New Year's resolutions focusing on improving cardiovascular fitness and muscle strength, implementing healthier diets, or kicking harmful addictions such as nicotine and alcohol consumption.

Recently, however, resolutions around behaviors that aim to improve your mental wellbeing have become more popular. Chronic stress has been shown to negatively impact the immune system, so practices that can effectively reduce stress can have important implications for health and disease.

One such practice gaining recognition is mindfulness — the cognitive skill of being fully present in the moment, focusing on your thoughts, feelings, and surroundings. Through activities such as deep breathing, meditation, and awareness exercises, mindfulness is often touted as a valuable tool for stress management.

But how does mindfulness impact the immune system?

In this blog, we discuss the effect of stress on the immune system and whether mindfulness has scientific merit in counteracting its influence.

Under Pressure

While stress is commonly associated with negative connotations, it is not inherently a bad thing. A stressful incident, often known as a stressor, triggers a physiological response that increases cardiac output and energy levels and activates the immune response. This primes the body to respond to danger in a rapid and efficient manner.

A key hormone in the stress response is cortisol. Stressors stimulate the production of cortisol via the hypothalamic-pituitary-adrenal (HPA) axis.

Alternatively, stressors can also activate the sympathetic nervous system (SNS), triggering the release of catecholamines such as adrenaline and noradrenaline (Alotiby 2024).

Activation of these pathways in the short term has been shown to increase lymphocyte numbers, particularly natural killer (NK) cells, and to elevate the production of proinflammatory cytokines, including IL-1β, TNF-α, and IL-6 (Busillo et al. 2011, Geiger et al. 2017, Schedlowski et al. 1996).

However, the problems with stress start to occur when the body is put under constant pressure in a state of chronic stress.

Persistently high levels of cortisol and/or catecholamines lead to a dysregulated immune response, particularly via the suppression of T cell activity and proliferation (Alotiby 2024).

In addition, chronic stress has been linked to impaired antibody responses to influenza vaccination, indicating a detrimental effect of stress on B cell function (Pedersen et al. 2009).

This alteration in the immune function in relation to stress has serious clinical implications, with an estimated 75% of all GP visits being stress-related. In particular, conditions that have a strong immune-based pathology are commonly linked to stress, including increased infection susceptibility, asthma, and allergies. Stress has also been suggested to play a role in cancer, HIV, inflammatory bowel disease, and cardiovascular disease (Marshall 2011, Zheng et al. 2025).

Multiple studies show that stress is a growing problem that has been consistently worsening over the years (Canaletti et al. 2025, Piao et al. 2024).

So, can we use mindfulness to reduce this burden?

Take a Breather

Mindfulness is by no means a new phenomenon. Its roots can be traced back thousands of years, and it is often thought to have emerged from Buddhist or Hindu traditions. 

Mindfulness was brought to western clinical practices by a molecular biologist, Jon Kabat-Zinn, who started the mindfulness-based stress reduction (MBSR) program in 1979. This eight-week program utilizes methods of mindfulness such as meditation and yoga and has been shown to be an effective method at reducing stress, anxiety, and depression (Kriakous er al. 2020).

Since then, mindfulness-based interventions (MBIs) in major healthcare settings have only become more popular.

A systematic review of existing studies on MBI in breast cancer patients found that mindfulness-based meditation modestly yet significantly impacted immune function, specifically by a reduction in inflammation and an increase in immune cell numbers and activity (Yu et al. 2025). In addition, a separate study noted that, alongside the benefits to the immune system, MBSR techniques also improved the quality of life and coping effectiveness of breast cancer patients (Witek-Janusek et al. 2009).

Similarly, in a randomized controlled trial, patients with end-stage renal disease who participated in a 30-minute guided mindfulness meditation during their dialysis session three times a week over eight weeks had significant reductions in inflammatory biomarkers, such as C-reactive protein (CRP) and TNF-α (Alhawatmeh et al. 2024).

Additionally, a comprehensive meta-analysis covering 48 studies on the impact of MBIs on the immune system provided further evidence of this effect. They again found that inflammatory factors were reduced following MBI (namely, CRP and IL-6), while CD4+ T cells were increased (Dunn and Dimolareva 2022).

However, while another systematic review of MBI effects on the immune system found similar results in terms of markers of inflammation and cell-mediated immunity, they also observed that these findings were limited to specific patient populations, disease types, and subgroup analyses. They noted considerable heterogeneity across studies in terms of population, assay procedures, and study design, which likely impacted the robustness of the results (Black and Slavich 2016).

Overall, although mindfulness may not be the miracle cure for all afflictions, the evidence suggests that it could help keep the immune system in shape. So, to start the year off right, why not pledge to roll out the yoga mat, take a few deep breaths, and focus on cultivating a healthier mindset? Your immune system may thank you!