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Ageing and Pain: Managing Pain to Reduce Pain-Induced Ageing Processes

Abstract

Chronic pain is increasingly recognized as a systemic biological stressor capable of accelerating ageing processes. Beyond its impact on quality of life, persistent pain contributes to chronic inflammation, neuroendocrine dysregulation, oxidative stress, immune senescence, sleep disruption, and psychosocial decline. These mechanisms overlap significantly with pathways implicated in biological ageing and age-related diseases. This review synthesizes current evidence on pain-induced ageing and highlights pain management as a critical, yet underutilized, strategy for promoting healthy ageing. Policy implications for integrating pain management into public health and ageing frameworks are discussed.

1. Introduction

Ageing is a multifactorial biological process influenced by genetic, environmental, behavioral, and psychosocial factors. Chronic pain affects an estimated 20–30% of adults globally and is more prevalent with advancing age. Traditionally treated as a symptom, chronic pain is now understood as a disease entity capable of driving long-term physiological deterioration. Poorly managed pain contributes to earlier onset of frailty, disability, cognitive decline, and non-communicable diseases (NCDs). Addressing pain effectively is therefore central to extending healthspan and reducing premature ageing.

2. Pain as a Driver of Allostatic Load

Allostasis refers to the body’s adaptive response to stress. Chronic pain imposes sustained activation of stress-response systems, leading to allostatic overload. Prolonged sympathetic nervous system and hypothalamic–pituitary–adrenal (HPA) axis activation results in maladaptive physiological changes, including hypertension, metabolic dysregulation, immune suppression, and accelerated tissue wear. High allostatic load has been strongly associated with premature mortality and functional decline.

3. Inflammation and Immune Ageing

3.1 Inflammaging

Chronic pain promotes persistent low-grade inflammation, characterized by elevated levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and C-reactive protein (CRP). This inflammatory state mirrors “inflammaging,” a hallmark of biological ageing associated with cardiovascular disease, neurodegeneration, osteoporosis, and sarcopenia.

3.2 Immune Senescence

Sustained inflammatory signaling accelerates immune ageing, leading to:

  • Reduced immune surveillance

  • Increased susceptibility to infections

  • Poor vaccine responsiveness

Pain control may therefore indirectly enhance immune resilience in ageing populations.

4. Neuroendocrine and Metabolic Dysregulation

Chronic pain disrupts cortisol rhythms and glucose metabolism, contributing to insulin resistance, visceral adiposity, and dyslipidemia. These metabolic alterations overlap with mechanisms underlying type 2 diabetes and cardiovascular disease. Additionally, fear of pain leads to physical inactivity, compounding muscle loss, bone demineralization, and functional ageing.

5. Cellular and Molecular Ageing

5.1 Oxidative Stress

Pain-related stress increases the generation of reactive oxygen species, overwhelming antioxidant defenses and accelerating cellular damage. Oxidative stress plays a central role in mitochondrial dysfunction and age-related tissue degeneration.

5.2 Telomere Attrition

Emerging evidence links chronic pain, psychological stress, and depression to telomere shortening, a molecular marker of accelerated ageing and reduced lifespan.

6. Pain, Brain Ageing, and Mental Health

Neuroimaging studies show that chronic pain is associated with structural and functional changes in brain regions involved in cognition, emotion, and executive function. These changes resemble patterns seen in premature brain ageing and may increase the risk of dementia. Depression, anxiety, and social isolation commonly co-exist with pain, reinforcing neurobiological ageing pathways.

7. Sleep Disruption and Circadian Dysregulation

Pain is a major cause of sleep fragmentation and insomnia. Poor sleep exacerbates inflammation, hormonal imbalance, metabolic dysfunction, and pain sensitivity. This bidirectional relationship creates a vicious cycle that accelerates ageing processes unless interrupted by effective pain and sleep management.

8. Pain Management as an Anti-Ageing Intervention

8.1 Multimodal Approaches

Evidence supports integrated pain management strategies combining:

  • Rational pharmacotherapy

  • Physical rehabilitation

  • Psychological interventions

  • Lifestyle and nutritional support

Such approaches reduce inflammatory burden and improve functional ageing outcomes.

8.2 Physical Activity

Appropriately guided movement improves mitochondrial health, muscle mass, insulin sensitivity, and pain tolerance, while reducing inflammatory markers.

8.3 Nutrition and Micronutrients

Adequate intake of protein, vitamin D, magnesium, antioxidants, and omega-3 fatty acids supports neuromuscular integrity and mitigates pain-related degeneration.

9. Life-Course and Equity Considerations

Untreated pain in early and mid-adulthood accelerates biological ageing later in life. In low- and middle-income settings, limited access to pain care contributes to early disability, reduced productivity, and widening health inequities. Pain management should therefore be framed as a life-course and equity intervention.

10. Policy Implications

  • Pain should be recognized as a modifiable risk factor for premature ageing

  • Pain management must be integrated into NCD, ageing, and mental health policies

  • Investment in rehabilitation and community-based pain care is cost-effective

  • Health worker training in rational pain management is essential

11. Conclusion

Chronic pain accelerates ageing through interconnected inflammatory, neuroendocrine, metabolic, cellular, and psychosocial pathways. Effective pain management can slow biological ageing, preserve function, and improve longevity. Recognizing pain control as a cornerstone of healthy ageing is critical for sustainable health systems and ageing societies.

References

  1. López-Otín C, et al. (2013). The hallmarks of aging. Cell, 153(6), 1194–1217.

  2. Franceschi C, et al. (2018). Inflammaging and ‘Garb-aging’. Trends in Endocrinology & Metabolism, 29(9), 623–633.

  3. McEwen BS. (2017). Neurobiological and systemic effects of chronic stress. Dialogues in Clinical Neuroscience, 19(2), 113–124.

  4. Apkarian AV, et al. (2011). Chronic pain and the brain. Nature Reviews Neuroscience, 12(9), 503–514.

  5. Cohen S, et al. (2013). Association of telomere length with psychological stress. Proceedings of the National Academy of Sciences, 110(16), 6480–6485.

  6. World Health Organization (2019). WHO guidelines on the pharmacological treatment of persisting pain. WHO Press.

  7. Fillingim RB, et al. (2016). Psychological factors in pain and ageing. Journal of Pain, 17(9), T70–T82.

  8. Irwin MR. (2015). Why sleep is important for health. Psychiatric Clinics of North America, 38(4), 673–690.

  9. Kehlet H, et al. (2021). Persistent postsurgical pain: risk factors and prevention. The Lancet, 397(10287), 2236–2247.


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