Summary: Chronic stress can trigger or worsen mental health conditions like anxiety and depression and may accelerate biological aging. Researchers outline practical stress-management strategies that build resilience to stressors and may help protect cells from stress-related ageing.
Source: The Conversation
Moderate stress can support growth and performance, but excessive stress harms mental and physical wellbeing and increases the risk of anxiety, depression and other illnesses. Prolonged stress also appears to speed cellular aging, so learning how to strengthen your resilience to stress is an important part of preserving long-term health.
Several studies report that people who struggle to manage stress have a substantially higher risk of premature death — with some analyses suggesting an increase of about 43%. One likely pathway for this effect involves damage to DNA and the structures that protect it.
DNA is present in almost every cell of the body and carries genes that direct the production of proteins and other essential molecules. The DNA strands form a double helix, and when a cell divides each strand serves as a template for a new copy. Errors can sometimes occur during this replication, especially at the ends of chromosomes.
Chromosome ends are protected by telomeres, which consist of repeated DNA sequences that act like caps. Each time a cell divides, telomeres shorten slightly. Over many divisions, these protective sequences progressively erode. When telomeres become critically short, a cell can no longer divide safely and either stops dividing or undergoes programmed death — a process that contributes to aging at the cellular level.
Some cell types, notably many immune cells, produce an enzyme called telomerase that can rebuild telomere sequences, effectively restoring the protective caps and allowing further cell divisions. This capacity is important for immune function because immune cells must replicate rapidly to fight infection. However, telomerase activity declines with age, and by advanced years immune cell renewal is diminished.
Factors under your control
Lifestyle factors such as smoking, excessive alcohol intake, obesity and chronic stress are associated with faster telomere shortening. High stress levels reduce telomerase efficiency, which can contribute to premature cellular aging. The encouraging news is that positive changes in lifestyle and stress management can slow or even partially reverse these processes.
Dietary choices — for example, a predominantly plant-based diet rich in nutrients and antioxidants — support cellular health. Regular physical activity, and particularly vigorous exercise, has been linked to higher telomerase activity and longer telomeres in some studies. Combining healthy nutrition and exercise with active stress management can therefore reduce the pace of biological ageing.
In psychology we distinguish between eustress — a form of positive, motivating stress that helps us meet challenges in work, sport or relationships — and distress, which is chronic, overwhelming stress that impairs functioning. It is primarily prolonged distress that appears harmful to cellular health and overall longevity.
You do not need to eliminate all stress — nor should you — but it is important to reduce prolonged, relentless distress that prevents you from living fully. Developing adaptive ways to approach stress can make a major difference to both psychological well-being and cellular health.
Building stress resilience involves actively approaching challenges and learning effective coping strategies. Seeking social support, problem-solving, and reframing stressful situations are proven approaches. For example, viewing a nerve-wracking event like public speaking as an exciting opportunity rather than a threat can lower physiological reactivity and improve performance.
Mindfulness and relaxation practices can also reduce reactivity to daily stressors. Techniques that increase positive emotions — such as reading, listening to music, engaging in hobbies, or playing light games — broaden attention and help you access internal psychological and social resources in difficult times.
Although direct causal links between psychological interventions and telomere length are still being established, existing evidence indicates that stress shortens telomeres while stress-reduction strategies can have beneficial cellular effects, including improved telomerase activity in some studies. Adopting healthier behaviors and mental habits to strengthen resilience is therefore a prudent investment in both mental health and biological aging.
These changes are not miracle cures — they won’t grant the extreme longevity of some long-lived species — but they can add valuable years to your life and improve the quality of those years. Small, consistent steps toward healthier living and better stress management can pay measurable dividends for both mind and body.
About this stress and aging research news
Author: Jolanta Burke and Padraic J. Dunne
Source: The Conversation
Contact: Jolanta Burke and Padraic J. Dunne – The Conversation
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