What’s Stress Got to Do with It? Understanding Cortisol and Your Body

Stress Management

There’s a name for the link between cortisol and stress – and understanding it can be the key to unlocking why your body feels the way it does. Stress can be helpful in certain situations. It causes our body and brain to react in high-pressure situations. When we are stressed, certain hormones are released to prime us for fight or flight and focus our mind and energy on escaping the stressful environment. These hormones include Adrenaline and Cortisol.

A small amount of stress – cortisol and adrenaline in short bursts – can help us to complete tasks, feel more energised when we exercise, and prime our body for optimal performance. Stress becomes a problem, however, when it lasts for a long time or is very intense, causing cortisol levels to remain high at rest for an extended period of time.

How Chronic Stress and High Cortisol Affect the Body

Exposure to stress for a long time can result in many physical symptoms because of how the nervous system and other organs respond to chronic cortisol saturation. These symptoms can include:

  • Worsening of existing pain
  • Old pain coming back
  • Increased inflammation
  • Hypersensitivity to stimuli (touch, pain, light, etc.)
  • Muscle aches
  • Headaches
  • Jaw tension
  • Digestive issues
  • Difficulty sleeping
  • Fatigue
  • Sweating
  • Changes in bowel movements and menstrual cycle

Stress, Cortisol, and Injury Recovery

Some of these symptoms can present to a physio, masking as, or layering on top of, an old or new physical injury. This is especially important to understand when you have an injury that is impacting your day-to-day life. Changes in our daily routine can be triggered by stress, but can also contribute to stress in the first place.

woman manage stress and body tension

If a new injury is disrupting your usual routine – including your ability to work and earn an income, as well as inhibiting healthy habits that usually help regulate cortisol levels – such as sleep, exercise, socialising with friends, or spending time outside, these chronic stress symptoms could be contributing to your experience of injury. Finding ways to manage the associated stress can help to make your whole body (including the original injury) feel better.

Our musculoskeletal physiotherapy team at Performance Medicine sees this connection regularly, and addressing stress and cortisol is an important part of a holistic recovery approach. You can also read more about how sleep impacts injury prevention and performance on our blog.

Everyone Experiences the Stress Response Differently

The cortisol stress response is highly individual. One person may get restless and feel it in their shoulders (muscle tension); another experiences reflux and insomnia; and a third finds their old ankle injury is suddenly grumbly for no reason. Recognising your own pattern is the first step toward managing it.

How to Reduce Cortisol and Manage Stress Naturally

The good news is that there are many evidence-informed strategies to help lower your resting cortisol levels and manage stress. Here are some great ways to get started:

  • Ensure good sleep hygiene: Quality sleep is one of the most powerful tools for regulating cortisol. Read our dedicated guide: The Art of Sleeping.
  • Go for a walk outside: Even a short walk in nature can meaningfully reduce cortisol and improve mood.
  • Organise time with friends: Social connection is a natural buffer against chronic stress.
  • Keep your home clean and tidy: A clutter-free environment can reduce cognitive load and lower background stress.
  • Eat a healthy, well-balanced diet: Nutrition directly influences inflammation and hormonal balance. Check out our post on Nutrition for Healing: Fuel Your Recovery for expert guidance.
  • Mindfulness and breathing exercises: Slow, controlled breathing activates the parasympathetic nervous system and is one of the most effective ways to counteract the cortisol stress response in the moment.

When to Seek Support for Stress and High Cortisol

If you are still struggling after trying the strategies above, make sure you talk to someone – a trusted friend, your GP, or a mental health professional. For those in the performing arts community, the Arts Wellbeing Collective is a wonderful service offering mental health and wellbeing support specifically for the performing arts community.

At Performance Medicine, our physiotherapy team takes a whole-body approach to your health – because cortisol and stress are never just “in your head.” If your stress is affecting your body and your recovery, we’re here to help. Book an appointment with us today in Melbourne or Sydney.

Nicole Reynolds