If you are wondering how to lower cortisol naturally, it comes down to a handful of consistent habits. Better sleep hygiene, routine cardio and strength based exercise, nervous system regulation techniques, a nutrient-dense diet, and honouring your own needs around stress all help. Certain adaptogenic herbs like ashwagandha and various supplements, can support this too, when used correctly and under guidance.
Chronic stress is far more common than most people realise. About 1 in 5 Australian adults experience high or very high psychological distress in a given year, and that level of distress is closely tied to a cortisol rhythm stuck in overdrive. That is one in five people around you. You could easily be one of them, feeling wired at midnight and exhausted by 9am, while everything on paper still reads as “normal.”
Cortisol often gets a bad rep, commonly known as the stress hormone, but it is not the enemy. In fact, cortisol is essential to get you up and going in the morning, helps your body respond to real challenges and function through the day. The problem starts when it stays high for too long, and that is when it quietly reshapes your weight, sleep, mood and hormone balance. The good news is you have far more control on how to lower cortisol than you might think.
What Happens When Cortisol Stays High?
When cortisol levels remain dysregulated for weeks or months, it can lead to a number of extremely challenging symptoms that many people feel they should be able to deal with by getting more sleep or eating less alone.
- Weight gain. Cortisol increases appetite and tells your body to store fat around the midsection, even when your eating habits have not changed.
- Fatigue and poor sleep. It disrupts your natural sleep-wake cycle, making it harder to fall asleep and harder to feel rested when you wake.
- Brain fog. Many people notice trouble concentrating, forgetfulness, or a general mental haze that coffee cannot fix.
- Mood changes. Persistent stress hormones are linked to anxiety, irritability, and low mood.
- Cardiovascular strain. Chronically high cortisol can contribute to high blood pressure and added strain on your heart.
- Lowered immunity. Cortisol suppresses immune function, so you catch every cold going around.
- Hormonal knock-on effects. It interferes with the production of other key hormones, which is why chronically high cortisol so often shows up alongside thyroid and adrenal symptoms rather than in isolation.
Most of these issues trace back to chronic, unmanaged stress. The 15 strategies on how to lower cortisol below target that root cause directly.
If your stress and cortisol have been building for a while, our free guide, How to Manage Your Stress and Cortisol, walks through the everyday habits and warning signs covered here in far more depth. Download it now.
15 Natural Ways on How to Lower Cortisol Levels
These strategies on how to lower cortisol work best in combination rather than one at a time. Start with whichever feels most achievable this week.
1. Prioritise Deep, Restful Sleep
Quality sleep is non-negotiable for hormone regulation. Poor sleep, whether that is an inconsistent bedtime or simply not enough hours, is directly linked to elevated cortisol. Aim for 7 to 9 hours a night with a calming bedroom, a consistent schedule, and less screen time before bed.
Most people underestimate how much this affects them. Around 36% of Australian adults reported sleeping less than 7 hours on average per night, well under the recommended range for adults. If your sleep is part of the problem, our sleep quiz can help you pinpoint exactly what is keeping you up.
2. Exercise Smart, Not Too Hard
Movement is a powerful regulator of stress hormones, but intensity changes the outcome. Intense exercise can temporarily spike cortisol, while regular, moderate activity lowers it over time. Aim for around 150 minutes of moderate movement each week, like brisk walking, cycling or yoga, plus 2 to 3 strength sessions.
Overtraining works against you here, so recovery deserves as much attention as effort. Only 54% of Australian adults currently meet the national physical activity guidelines, and 31% are inactive, which leaves a lot of people missing out on one of the simplest cortisol-lowering tools available.
3. Practise Relaxation Breathing
When you feel stressed, your breathing becomes shallow and fast, which signals a threat to your nervous system. Slowing your breath on purpose flips that switch, activating the “rest and digest” response instead. A simple technique like box breathing, in for 4, hold for 4, out for 4, hold for 4, can lower cortisol within minutes.
Relaxation techniques, including slow, paced breathing, are recommended by Healthdirect as a first-line, non-drug approach to stress and anxiety. It costs nothing and works almost anywhere.
4. Practise Mindfulness or Meditation
Mindfulness means staying present without judgement, and that alone calms your body’s stress response. Even a few minutes of daily meditation or a mindful body scan can sharpen mental clarity and build resilience over time.
Mindfulness-based interventions delivered in Australian settings have been shown to reduce stress, anxiety and depressive symptoms in adults. Consistency counts more than duration here, so a short daily habit beats an occasional long session.
5. Laugh and Have Fun
Laughter genuinely works as medicine. It boosts mood-lifting endorphins and helps suppress stress hormones like cortisol.
Make time for a comedy, a game, or a hobby you genuinely enjoy, not just the things on your to-do list. Fun is not a luxury here. It is part of keeping your nervous system balanced.
6. Build Supportive Relationships
Positive social connection is one of the strongest buffers against stress. Spending time with people you trust, resolving conflict calmly, and leaning on a support system all lower your cortisol reactivity when life gets difficult.
7. Spend Time with Pets
The bond between people and animals has a measurable calming effect. The simple act of patting a dog or cat has been found to lower cortisol levels and lift mood in the moment. If you already have a pet, this is one cortisol tool you are probably underusing.
8. Set Healthy Boundaries
Feeling constantly overcommitted or unable to say no is a major source of chronic stress. Learning to protect your time and energy is not selfish. It is a direct way to reduce emotional strain and support healthier cortisol rhythms.
Workload is a big part of this equation for many Australians. Excessive workload and long hours are among the most commonly reported workplace stressors nationally, and stress that never switches off tends to keep cortisol elevated too.
9. Embrace Gratitude
Gratitude shifts your focus away from stressors and toward what is genuinely going well. A simple daily habit, like writing down three things you are grateful for, can lift mood and lower stress hormones over time. Reframing your day, even on a hard one, is a genuine cortisol-lowering skill, not just a nice idea.
10. Nourish Your Body with a Balanced Diet
Your diet has a direct line to your hormone health. Diets high in refined sugar and processed foods disrupt cortisol balance, while a whole-foods diet rich in fruit, vegetables, lean protein and healthy fats supports it. Dark chocolate, green tea and omega-3-rich fish are particularly useful for stress management.
Our free guide, How to Manage Your Stress and Cortisol, covers exactly which foods and nutrients support healthy cortisol rhythms day to day. Grab your free copy.
11. Support Gut Health
The gut-brain axis is a critical two-way line for managing stress, and a healthy gut microbiome helps regulate cortisol production. Start with the behaviour of being relaxed when you eat, chewing mindfully, and ideally socially. Dietary wise, add probiotic foods like yoghurt, kefir and sauerkraut, along with prebiotic foods like garlic, onions and bananas, to support both your digestion and your nervous system.
This link between gut and mood is well established even where cortisol-specific data is still developing, and it is one reason gut symptoms and stress symptoms so often show up together.
12. Stay Hydrated
Even mild dehydration can cause a short-term spike in cortisol. Keeping your water intake consistent throughout the day removes one unnecessary physical stressor your body has to manage. It is a simple habit, but an easy one to overlook when your day gets busy.
13. Limit Caffeine and Alcohol
Caffeine is a stimulant that raises cortisol, especially in large amounts or later in the day. Alcohol disrupts sleep quality and hormone regulation, which compounds the problem. Moderating both helps your nervous system relax and supports healthier cortisol rhythms. If your evenings usually involve a coffee refill or a glass of wine to unwind, this is worth a second look.
14. Try Adaptogens and Targeted Supplements
Alongside a healthy lifestyle, certain supplements may help your body manage stress more effectively. Always check with a healthcare professional before starting anything new.
- Ashwagandha. An adaptogenic herb shown to help lower cortisol levels.
- Fish oil. Rich in omega-3 fatty acids, which help blunt the stress response.
- L-Theanine. Helps reduce cortisol spikes and supports focus.
Used correctly and under guidance, supplements like these can add real support to the other habits on this list.
15. Seek Professional Guidance
Chronically high cortisol can sometimes point to something deeper, like adrenal dysfunction or a genuine cortisol imbalance rather than everyday stress. If lifestyle changes are not enough, our Stress & Sleep Profile measures your cortisol rhythm through the day alongside melatonin and DHEA, so you get a clear picture instead of a guess when you take a step on how to lower cortisol levels.
Not sure if your symptoms point to adrenal stress specifically? Our signs of adrenal stress checklist is a quick way to see whether it is worth investigating further, and if you are already dealing with ongoing fatigue or pain, it is also worth understanding how unmanaged adrenal stress and conditions like fibromyalgia can feed into each other.
Ready to Get to the Root of Your Stress?
Lifestyle changes can take you a long way, but they cannot tell you what your cortisol is doing throughout the day. If fatigue, weight gain or brain fog have stuck around despite your best efforts, it may be time to look at what is really going on underneath.
At The Lucy Rose Clinic, we test your cortisol rhythm properly, alongside the thyroid and adrenal markers that often travel with it, so your plan is built around your actual results, not guesswork.
Book a free 15-minute consultation with one of our naturopaths. No pressure, no obligation, just a clear picture of what is driving your stress and fatigue.
Frequently Asked Questions
How can I lower my cortisol levels quickly?
Extending the length of your exhale, a short meditation, or even a genuine laugh can lower cortisol within minutes. These work as fast, in-the-moment tools, not a replacement for the longer-term habits above.
What foods reduce cortisol?
A whole-foods diet rich in vegetables, lean protein, healthy fats, dark chocolate, green tea and omega-3-rich fish supports healthy cortisol levels. Refined sugar and heavily processed foods tend to work against it.
What supplements help lower cortisol?
Ashwagandha, fish oil and phosphatidylserine are the most commonly used options for supporting healthy cortisol levels. Check with a healthcare professional before starting any of them, especially alongside other medication.
Can high cortisol affect thyroid health?
Yes. Chronically high cortisol can disrupt the production and regulation of other hormones, including thyroid hormones, which is why stress and thyroid symptoms so often overlap.
