June Focus - Chronic Stress and Your Body: What Cortisol Really Does

Most stress advice oversimplifies the science. Here's what's actually happening — and what helps.

Published by MindCare Health | Franklin, Tennessee
Last updated: June 2026

Key Takeaways

Chronic stress can throw off your body's main stress system, called the HPA axis. This can lead to either high cortisol (the "wired" feeling) or low cortisol (the "depleted" feeling). Both cause real symptoms.

Stress is not just in your head. It can affect your sleep, immune system, blood pressure, blood sugar, digestion, hormones, and thinking.

"Adrenal fatigue" is not an official medical diagnosis. But HPA axis dysregulation is real and can be measured.

Ashwagandha has solid research support for stress and anxiety in adults. But it has real risks for some people, including those who are pregnant, have thyroid or autoimmune conditions, or have liver problems.

A full clinical workup is more useful than a single test. Looking at thyroid, inflammation, metabolism, and nutrition together gives a clearer picture than testing cortisol alone.

You know the person who handles everything just fine — until they're suddenly not sleeping, catching every cold, snapping at the people they love, and quietly wondering what's wrong with them?

That person is often you. Or someone close to you. And the answer is almost never a character flaw or a discipline problem.

It's physiology.

Stress doesn't just affect your mood. It reshapes your sleep, your immune system, your digestion, and your ability to think clearly. And here's what most wellness content gets wrong: chronic stress doesn't only crank your system up. Over time, it can wear it out. That's why so many people feel tired, foggy, and unable to handle things they used to manage with ease.

By the end of this article, you'll understand what stress is really doing to your body and mind, why this season often feels heavier, and which steps actually help.

What Is Chronic Stress Actually Doing to Your Body?

Chronic stress throws off a system in your body called the HPA axis. This system controls the release of cortisol, your main stress hormone. Over time, two opposite patterns can develop. Some people get stuck with high cortisol, which feels wired and restless. Others end up with a blunted response, which feels like fatigue and brain fog. Both patterns are real, and both can affect your health.

Your HPA axis works like a stress thermostat. Three parts of your body — the hypothalamus, the pituitary gland, and the adrenals — work together to release cortisol when you're under pressure. In short bursts, this system is brilliant. It helps you meet a challenge, then quiets down so you can recover.

Short-term stress is healthy. The problem is chronic stress, where your body never fully recovers.

When the system stays activated too long, it can either stay stuck "on" or eventually burn out. Most people only notice the wired version. That means the depleted version often goes unaddressed for years.

This isn't a small problem. The American Psychological Association's 2025 Stress in America: A Crisis of Connection survey found that 76% of U.S. adults are stressed about the future of the country. Nearly 70% said they needed more emotional support in the past year than they actually received — up from 65% in 2024. Most people are already running on a high stress baseline before personal challenges even hit.

Why Do I Feel Tired All the Time If Stress Is Supposed to Energize Me?

The "wired but tired" feeling is HPA axis dysregulation showing up in real life. When cortisol stays high too long, it disrupts your sleep. You get less deep sleep, wake more often, and may wake earlier than you want to. Over time, the system can burn out. You're left with low morning cortisol and that running-on-fumes feeling by 10 a.m.

You may have heard this called "adrenal fatigue." Here's the honest answer: adrenal fatigue is not an official medical diagnosis. What is real and measurable is HPA axis dysregulation. The wellness-marketing version of "adrenal fatigue" oversimplifies what's actually happening. It often points people toward expensive tests and supplements that don't fix the underlying problem.

How Does Stress Show Up in Your Physical Health?

Chronic stress can affect almost every system in your body. The most common signs are poor sleep, more frequent illness, higher blood pressure, blood sugar problems, digestive issues, hormonal changes, and brain fog.

Stress is not just "in your head." When stress becomes chronic, the signals show up in places people rarely connect back to stress:

Sleep. Trouble falling asleep, waking often, or waking too early.
Immune system. Catching every bug, taking longer to recover, autoimmune flares.
Heart and blood pressure. Higher blood pressure, changes in heart rate.
Metabolism. Insulin resistance, weight gain around the middle, evening cravings.
Digestion. IBS-type symptoms, reflux, gut changes.
Hormones. Irregular periods, low libido, thyroid changes.
Thinking. Brain fog, forgetfulness, trouble concentrating.

This list isn't meant to alarm you. It's meant to help you connect the dots. Your body sends signals when something is off. People who do well with chronic stress are usually the ones who notice these signals early — not the ones who push through until something forces them to stop.

Why Does Stress Feel So Much Heavier This Year?

Stress feels heavier because it actually is heavier. Background stress is at historic highs. Social supports have weakened. Loneliness has become its own health problem with measurable physical effects.

The 2025 APA survey found that 62% of adults are stressed by division in our country. About half of adults report meaningful loneliness — 54% feel isolated, 50% feel left out, and 50% lack companionship. The mind-body link is real. Among adults with high loneliness, 94% report at least one physical symptom of stress. Among those with low loneliness, the number drops to 61%.

For those of us in Middle Tennessee, summer adds its own load. End-of-school-year changes, family schedule shifts, heat and humidity that disrupt sleep, work review cycles, vacation logistics. June stacks several stressors at once. Your body responds the way bodies respond to stacked stress — by struggling to recover between them.

How Do I Know If I'm Actually Stressed or Just "Busy"?

You may be dealing with more than ordinary stress when symptoms last beyond the stressful event and start affecting multiple parts of your life. Some signs to take seriously:

Sleep quality is dropping or shifting later
A shorter emotional fuse with the people you love
Catching every bug going around
Concentration that isn't what it used to be
Needing caffeine to start the day, alcohol or food to wind down
Headaches, gut issues, or jaw tension you've been ignoring
Feeling "on" all the time, with no off-switch
Loss of small pleasures — things that used to feel good don't anymore

If several of these sound familiar, it may be time to take a closer look.

What Actually Helps Regulate Your Stress Response?

The most effective stress strategies are basic lifestyle habits: consistent sleep, a real breakfast with protein, steady blood sugar, regular movement, time outside, and meaningful social connection. Targeted tools like ashwagandha, mindfulness, and therapy work better when these foundations are in place.

Foundations first. Supplements and other tools second.

The basics aren't glamorous. They won't trend on social media. But they outperform anything you can buy in a bottle.

It's also worth saying out loud: managing your stress exposure often works better than managing your stress response. Figuring out what's really driving the load — and changing what can be changed — is half the work. No supplement can keep up with a life that keeps creating new stress faster than your body can recover from the old.

Beyond the basics, several approaches have solid research behind them: structured exercise, mindfulness practices, cognitive behavioral therapy, and breathing techniques that activate your body's "rest and digest" mode.

Can Ashwagandha Help with Stress and Anxiety?

Yes — research shows ashwagandha can help reduce stress and anxiety in adults. But it's a targeted tool with real risks, and it's not right for everyone.

A February 2026 review published in Complementary Therapies in Medicine combined 22 high-quality studies covering 1,391 adults. It found that ashwagandha helped reduce stress, anxiety, and depression. One surprising finding: lower doses (around 500 mg per day or less) taken for longer than eight weeks worked better than higher doses taken for shorter periods.

Ashwagandha is not a same-day calming agent. People who try it for a week and quit never give it a fair test. Real effects usually take six to eight weeks of consistent use.

Who Should NOT Take Ashwagandha?

Some people should not take ashwagandha at all. This includes anyone who is pregnant, breastfeeding, has a thyroid condition, has an autoimmune condition, has hormone-sensitive prostate cancer, has surgery scheduled within two weeks, or has liver problems. It can also interact with certain medications.

This is where clinical guidance matters more than wellness-aisle advice. Ashwagandha is one of the more medically active herbs on the shelf. The cautions are real:

Pregnancy or trying to conceive — can cause uterine contractions and miscarriage
Breastfeeding — not enough safety data
Any thyroid condition or thyroid medication — ashwagandha raises thyroid hormone levels
Autoimmune conditions — it boosts immune activity
Hormone-sensitive prostate cancer
Surgery within two weeks — it can interact with anesthesia
Taking immune-suppressing medications, blood pressure medications, or blood sugar medications
Liver disease or elevated liver enzymes

The UK Committee on Toxicity reviewed ashwagandha in 2025 and flagged a real concern: rare cases of liver injury. Their review couldn't set a safe dose for the general public. The NIH Office of Dietary Supplements says safety data only supports use for about three months. Long-term safety isn't known.

None of this means ashwagandha is dangerous for everyone. It means the screening matters. For many adults with stress and anxiety symptoms and none of the cautions above, a low-dose trial over time is a reasonable option to discuss with a clinician.

This is exactly the kind of question a full psychiatric workup is built for. MindCare Health's stress reduction lab panel and customized wellness plan look at the body systems most affected by chronic stress — thyroid, inflammation, metabolism, and nutrition. The results become a personalized plan. That plan may or may not include ashwagandha, depending on what your labs and symptoms actually show.

Schedule your evaluation →

When Should You Talk to a Clinician About Stress?

Talk to a clinician when you have ongoing sleep problems you can't fix on your own, unexplained physical symptoms, worsening mood or anxiety, or when stress is getting in the way of your work, sleep, or relationships. Specifically:

Sleep problems that won't reset
Physical symptoms — gut, heart, immune — with no clear medical cause
New or worsening anxiety or depression
Considering supplements alongside prescription medications
Feeling like you've tried "all the wellness stuff" and you're still drained
Anxiety that's getting in the way of work, sleep, or relationships

Getting help is informed self-care, not failure. The people who do best are usually the ones who address the load before it becomes a crisis — not the ones who wait until they have no choice.

Common Misconceptions About Stress and Cortisol

Four common myths get in the way of dealing with chronic stress.

"My adrenals are fatigued." Adrenal fatigue is not an official medical diagnosis. HPA dysregulation is real and measurable. The wellness-marketing version is not. It often leads people to expensive tests that don't change treatment.

"Stress is just psychological." Chronic stress causes measurable changes in your immune system, heart health, metabolism, and brain. Treating it as just a mindset problem misses most of what's happening.

"Ashwagandha is natural, so it's safe." Natural and safe are not the same thing. Ashwagandha has real drug interactions, real cautions, and rare cases of liver injury. It deserves the same respect as any medication.

"If I really needed help, I'd be in worse shape." Most people who benefit most from clinical support don't look like they're falling apart. They look like they're holding it all together — at real personal cost. Reaching out earlier rather than later is usually the smarter call.

Frequently Asked Questions

How do I know if I have chronic stress or just normal stress?

Normal stress goes away once the stressful event passes. You sleep again, your energy returns, your mood stabilizes. Chronic stress is the kind that doesn't fully reset. Your body stays activated, or eventually burns out, and symptoms build up over time. If you can't remember the last time you felt fully rested, it may be more than ordinary stress.

Should I get my cortisol tested?

Testing cortisol by itself usually isn't very helpful. Cortisol levels change throughout the day, so one test rarely changes a treatment plan. Direct-to-consumer saliva cortisol kits sold online tend to be more expensive than useful. What actually helps is a full clinical workup that looks at the body systems chronic stress affects — thyroid, inflammation, metabolism, and nutrition — along with your symptoms, sleep, and stress level. That combination is what gives a clinician something to work with.

How long does ashwagandha take to work for stress?

Real effects usually take six to eight weeks of consistent use. Lower daily doses (around 500 mg or less) tend to work better than higher doses over time. It's not a same-day fix. People who try it for a week and stop never give it a fair test.

Can stress really cause physical symptoms with no other medical cause?

Yes, and this is well-documented. Chronic stress affects nearly every body system. Headaches, gut symptoms, frequent illness, blood pressure changes, and sleep problems can all be caused or worsened by stress. This doesn't mean stress is the only thing to check, but it's often the one most overlooked.

What's the difference between stress and anxiety?

Stress is your body's response to a demand or pressure — it usually has a clear cause. Anxiety is when the threat-response system stays activated, often with no clear trigger, and includes worry that's hard to shake. They overlap a lot. Chronic stress often turns into anxiety when the system can't reset.

Stop Guessing What Your Body Needs

If anything in this article felt familiar — the depleted-but-can't-stop feeling, the sleep that won't settle, the physical symptoms you've been brushing off — you don't have to figure it out alone. And you don't have to wait until it gets worse.

MindCare Health offers a stress reduction lab panel and customized wellness plan for adults who want a clinical partner instead of guesswork.

The panel looks at the body systems most affected by chronic stress — including thyroid, inflammation, metabolism, and nutrition. The plan turns your results into a personalized roadmap covering sleep, food, movement, stress management, and targeted supplements or medications when they're right for you.

Stop guessing what your body needs. Find out.

Schedule Your Stress Reduction Lab Panel →

MindCare Health is a private-pay concierge psychiatric practice in Franklin, Tennessee. The practice is led by a Board Certified Psychiatric Mental Health Nurse Practitioner.

MindCareHealth.us | 615-219-9767

This article is for educational purposes and is not medical advice. Reading it does not create a clinician-patient relationship. Supplements, including ashwagandha, can interact with medications and may not be safe for everyone. Talk with a qualified clinician before starting any new supplement, especially if you are pregnant, breastfeeding, have a thyroid or autoimmune condition, take prescription medications, or have liver concerns. If you are in crisis or considering harming yourself, call or text 988 to reach the Suicide and Crisis Lifeline.

References

American Psychological Association. (2025, November). Stress in America 2025: A Crisis of Connection. https://www.apa.org/pubs/reports/stress-in-america/2025
Bachour, G., Samir, A., Haddad, S., Houssaini, M. A., & El Radad, M. (2025). Effects of ashwagandha supplements on cortisol, stress, and anxiety levels in adults: A systematic review and meta-analysis. BJPsych Open, 11(S1). https://doi.org/10.1192/bjo.2025.10136
National Institutes of Health, Office of Dietary Supplements. (2025). Ashwagandha: Is it helpful for stress, anxiety, or sleep? Health Professional Fact Sheet. https://ods.od.nih.gov/factsheets/Ashwagandha-HealthProfessional/
UK Committee on Toxicity of Chemicals in Food, Consumer Products and the Environment (COT). (2025). Review of the safety of ashwagandha (Withania somnifera) in food, drinks and food supplements. Toxicology Letters, 411, S326.
Askarpour, M., et al. (2026). Effects of ashwagandha (Withania somnifera) on mental health in adults: A systematic review and dose-response meta-analysis of randomized controlled trials. Complementary Therapies in Medicine, 97, Article 103325.
Cleveland Clinic. (2025, July). Ashwagandha: Uses and Side Effects. https://health.clevelandclinic.org/what-is-ashwagandha
American Psychological Association. (2024). Stress in America 2024: A Nation in Political Turmoil. https://www.apa.org/pubs/reports/stress-in-america/2024