Feeling stressed, struggling to sleep, or constantly running on empty? Cortisol might be part of the picture. It's your body's main stress hormone, and while you need it to function properly, ongoing stress can disrupt its normal rhythm.

The good news is that simple habits, including better sleep, regular exercise, and relaxation, may help regulate cortisol. Some even have measurable benefits in human studies.

Key Takeaways:

• Cortisol naturally rises in the morning and falls throughout the day. It's not something you want to eliminate.
• Regular exercise, mindfulness, and relaxation techniques may help regulate cortisol levels.
• Sleep, balanced meals, and spending time outdoors can support your body's stress response.
• Some supplements show promising results, but persistent high cortisol may require medical evaluation.

What Is Cortisol, and Why Does It Get High?

Cortisol is a hormone produced by your adrenal glands. It helps regulate metabolism, blood sugar, inflammation, and your response to stress.

Your cortisol levels follow a daily rhythm. They generally peak shortly after waking and gradually decline toward bedtime. This natural rise helps prepare your body for the day (1).

Stress, poor sleep, certain medications, and medical conditions can affect cortisol regulation. But feeling anxious, tired, or gaining weight doesn't automatically mean your cortisol is too high.

The goal isn't to keep cortisol as low as possible. It's to support a healthy daily rhythm and avoid unnecessary, prolonged stress.

7 Ways to Lower Cortisol Naturally

1. Get 7 to 9 Hours of Quality Sleep

Start with your sleep schedule. Going to bed and waking up at consistent times helps keep your body's internal clock on track.

Poor sleep can increase perceived stress and interfere with your body's normal recovery. However, the relationship with cortisol is more complicated than it sounds.

A 2024 review of 24 studies found that acute sleep deprivation did not consistently raise cortisol across all measurements, although certain blood measurements showed increases (2).

For better sleep:

• Aim for 7 to 9 hours each night.
• Keep your bedroom cool, dark, and quiet.
• Limit caffeine later in the day.
• Maintain a consistent bedtime and wake-up time.

2. Exercise Regularly, but Don't Overdo It

Walking, cycling, swimming, and yoga can help your body manage stress.

A 2025 meta-analysis of 44 studies found that exercise helped reduce cortisol in adults experiencing psychological distress. Yoga showed one of the strongest effects, with a standardized effect size of -0.59 (3).

One interesting detail: Intense exercise can temporarily increase cortisol. That's a normal response to physical effort, not necessarily a sign of harm.

Aim for around 30 minutes of moderate activity on most days. If you're already exhausted or recovering from illness, choose gentle movement instead of pushing through another intense workout.

3. Practice Mindfulness and Meditation

Meditation gives your mind a chance to settle, especially when stress keeps your thoughts racing.

A 2026 meta-analysis involving 2,059 participants examined 39 mindfulness-based stress reduction studies. Researchers found a modest reduction in cortisol compared with control groups, although results varied between studies (4).

You don't need a lengthy meditation session to begin.

Try sitting quietly for 5 to 10 minutes, focusing on your breathing, and gently returning your attention whenever your mind wanders.

Structured mindfulness programs have stronger research support than a few isolated sessions, so consistency matters.

4. Try Slow, Deep Breathing

When stress hits, your breathing can become quick and shallow. Slowing it down may help you feel calmer.

A systematic review of diaphragmatic breathing examined three studies. All reported improvements in stress measures, and one found lower salivary cortisol (5).

Here's a simple exercise:

• Inhale gently through your nose for 4 seconds.
• Exhale slowly for 6 seconds.
• Repeat for 5 minutes, keeping your breathing comfortable.

Deep breathing may provide immediate relaxation, but feeling calmer doesn't always mean your cortisol has dropped. The evidence for lasting cortisol changes remains limited.

5. Spend 20 to 30 Minutes Outdoors

A little time outside might do more than clear your head.

In a 2019 study involving 36 adults, researchers measured cortisol before and after participants spent time in nature. They found the most efficient cortisol reduction per minute occurred during visits lasting 20 to 30 minutes (6).

The researchers also accounted for cortisol's natural decline throughout the day.

It's a small observational study, so the findings aren't definitive. Still, a short walk through a park or some quiet time in a garden is a simple habit worth trying.

6. Eat Balanced Meals and Watch Your Caffeine

No single food can reliably fix high cortisol. A balanced diet, however, supports general health and gives your body the nutrients it needs to manage daily demands.

Focus on vegetables, fruits, whole grains, protein, and healthy fats. Fish, walnuts, and flaxseeds provide omega-3 fatty acids, which researchers have also studied for their effects on stress.

Caffeine deserves attention, too.

A controlled study involving 96 adults found that caffeine increased cortisol under certain conditions, even among habitual caffeine users (7).

You don't necessarily need to give up coffee. If caffeine makes you anxious or affects your sleep, reducing your intake or avoiding it later in the day may help.

7. Make Time for Rest and Social Connection

Not every stress-management habit needs a strict routine.

Spending time with people you trust, enjoying hobbies, taking breaks, and setting reasonable boundaries can help reduce the mental burden of everyday stress.

Research also supports structured relaxation. A meta-analysis involving 3,508 participants found that stress-management interventions improved cortisol measures, with mindfulness and relaxation showing particularly favorable results (8).

Even small changes count. Try taking a proper lunch break, disconnecting from work in the evening, or making time for something you genuinely enjoy.

Can Supplements Help Lower Cortisol?

Some supplements have shown promising effects on cortisol, but the evidence varies by ingredient, dose, and study population.

Ashwagandha has some of the more direct human evidence. In a randomized trial involving 60 adults, daily doses of 250 mg and 600 mg of ashwagandha extract reduced serum cortisol over eight weeks compared with placebo (9).

That doesn't mean everyone should take it. The National Institutes of Health notes that ashwagandha has been linked to rare cases of liver injury and may interact with medications. People who are pregnant, breastfeeding, or have thyroid or autoimmune disorders should avoid it (10).

Omega-3 fatty acids have also attracted interest. One trial involving 138 middle-aged adults found that 2.5 grams of omega-3s daily for four months was associated with 19% lower cortisol levels during a laboratory stress test compared with placebo (11).

That's encouraging, but it doesn't establish omega-3 supplements as a treatment for high cortisol.

Evidence for magnesium and other products marketed as cortisol reducers is less convincing. Correcting a nutrient deficiency may benefit health, but that isn't the same as demonstrating a cortisol-lowering effect.

Supplements should complement healthy habits, not replace them or appropriate medical treatment.

When Should You See a Doctor About High Cortisol?

Stress-related symptoms don't automatically indicate a hormone disorder. However, persistently excessive cortisol can sometimes result from conditions such as Cushing's syndrome.

Speak with a healthcare professional if you develop several unexplained or progressive symptoms, particularly:

• Unusual weight gain around the abdomen or face.
• Easy bruising or wide, purple stretch marks.
• Muscle weakness, especially in the upper arms or thighs.
• High blood pressure or blood sugar.
• Thinning skin or slow wound healing.

Doctors may recommend late-night salivary cortisol testing, a 24-hour urine test, or a dexamethasone suppression test when Cushing's syndrome is suspected (12).

A single random cortisol measurement cannot reliably diagnose the condition. If cortisol is medically elevated, treating the underlying cause matters more than lifestyle changes alone.

Final Words

Lowering cortisol isn't about finding a quick fix or trying to shut down your body's stress response. Start with better sleep, regular movement, and small breaks from daily pressure. Those habits can make a meaningful difference to how you feel.

For a broader healthy-aging routine, you can also explore Omre NMN + Resveratrol, formulated for NAD+ support and cellular health. It isn't a proven treatment for high cortisol.

Frequently Asked Questions

How can I lower cortisol levels quickly?

Slow breathing, stepping away from a stressful situation, or taking a gentle walk may help you relax within minutes. However, immediate stress relief doesn't guarantee a measurable cortisol reduction. Consistent habits offer a better long-term approach.

What foods help lower cortisol?

There isn't a specific food proven to lower cortisol reliably. A balanced diet containing vegetables, fruits, whole grains, protein, and healthy fats can support general health and stress management.

Can drinking water lower cortisol?

Drinking water helps maintain normal hydration, but there's limited evidence that drinking extra water directly lowers cortisol in well-hydrated people. Stay hydrated throughout the day rather than treating water as a cortisol remedy.

How long does it take to lower cortisol?

Cortisol changes naturally throughout the day and can respond to short-term stress. In clinical studies, some mindfulness and supplement interventions showed measurable effects after several weeks. Results depend on the individual and the cause of cortisol changes.

How do I know if my cortisol is too high?

Symptoms alone cannot confirm high cortisol. A doctor can assess your medical history and recommend appropriate testing if needed. Cortisol varies by time of day, so interpreting a test result requires context.

References

1. The Chronobiology of Hormone Administration. Discussion of cortisol's daily rhythm, 2025.
2. The Effect of Acute Sleep Deprivation on Cortisol Level. Endocrine Journal, 2024.
3. The Optimal Exercise Modality and Dose for Cortisol Reduction in Psychological Distress. Sports, 2025.
4. Mindfulness-Based Stress Reduction Interventions and Cortisol Regulation. Systematic review and meta-analysis, 2026.
5. Effectiveness of Diaphragmatic Breathing for Reducing Physiological and Psychological Stress. Systematic review, 2019.
6. Urban Nature Experiences Reduce Stress in the Context of Daily Life Based on Salivary Biomarkers. Frontiers in Psychology, 2019.
7. Caffeine Stimulation of Cortisol Secretion Across the Waking Hours. Psychosomatic Medicine, 2005.
8. Effectiveness of Stress Management Interventions to Change Cortisol Levels. Systematic review and meta-analysis, 2024.
9. Adaptogenic and Anxiolytic Effects of Ashwagandha Root Extract in Healthy Adults. Randomized controlled study, 2019.
10. Ashwagandha: Usefulness and Safety. National Center for Complementary and Integrative Health.
11. Omega-3 Supplementation and Stress Reactivity of Cellular Aging Biomarkers. Randomized controlled trial, 2021.
12. Diagnosis of Cushing's Syndrome: Clinical Practice Guidelines. Endocrine Society.