Understanding Cortisol and Stress
We’ve all had those weeks. Work deadlines pile up, sleep becomes patchy, the to-do list never seems to end and suddenly your back aches, your neck feels tight, or that old sports injury starts making itself known again. Coincidence? Not necessarily. One of the key players behind this is cortisol.
Cortisol is produced by the adrenal glands – two small glands that sit just above the kidneys – and is released as part of the body’s natural stress response. In the short term, it’s beneficial, helping to increase energy levels, improve alertness, regulate inflammation and support the body’s response to injury. Under normal circumstances, cortisol follows a daily rhythm, peaking in the morning and gradually declining throughout the day.
Modern life however, can place the body under excess stress. Work pressures, financial worries, poor sleep, illness, injury and even excessive exercise without adequate recovery can all contribute to chronically elevated cortisol levels.
How Chronic Stress Affects Your Body
When this happens for prolonged periods, the body’s ability to repair and recover can be affected, affecting many aspects of health, including the musculoskeletal (MSK) system. Elevated cortisol can increase muscle breakdown, making it harder to build or regain strength following injury. As a result, tissue healing may be slower and recovery from conditions such as tendinopathies or muscle injuries may take longer.
Research has shown that chronic stress can influence the nervous system and increase pain sensitivity. This may help explain why symptoms such as back and neck pain and persistent joint or muscle pain often occur during particularly stressful periods of life.
For physiotherapists and osteopaths, these factors are highly relevant. Successful rehabilitation depends not only on exercise and treatment but also on the body’s ability to adapt, recover and heal. Patients experiencing higher levels of stress, poor sleep or ongoing fatigue may progress more slowly despite following an appropriate rehabilitation programme. This is why successful recovery often depends on looking beyond the injury and considering a person’s overall health and wellbeing.
Small Changes Can Make a Big Difference
While we cannot eliminate stress entirely, there are simple steps that can help regulate cortisol levels and support a healthy musculoskeletal system and recovery from injury:
- Prioritise 7–9 hours of quality sleep each night.
- Stay physically active but allow adequate recovery between exercise sessions.
- Take regular breaks during the day and avoid long periods of sitting.
- Spend time outdoors and expose yourself to natural daylight.
- Practise stress-management techniques such as mindfulness, breathing exercises, yoga, or relaxation training.
- Maintain social connections and talk to others when feeling overwhelmed.
- Eat a balanced diet and avoid relying on excessive caffeine to combat fatigue.
- Listen to your body – persistent tiredness, poor recovery, or worsening pain may be signs that you need more rest and recovery.
The goal is not to eliminate cortisol, it is a vital hormone that plays an important role in maintaining health. Rather, the aim is to support healthy regulation of the body’s stress response through adequate sleep, regular physical activity, effective stress management and appropriate recovery.
Remember, rehabilitation is not just about movement and exercise; it’s also about giving your body the best environment in which to heal.
The team at Walnut Grove Clinic provides a wide range of services to support your health, both physically and mentally. If you are feeling a little under par, why not call in and have a chat with us to see how we can help?
