The Short Answer: Chronic stress directly impacts your immune system and can worsen autoimmune symptoms. An adrenal stress test (salivary cortisol panel) measures how your body handles stress hormones and helps identify whether stress is contributing to your fatigue, sleep problems, or other symptoms, making it a useful tool for anyone managing an autoimmune condition.

How stress affects autoimmune patients

You’ve probably heard stress is bad for you. But if you have an autoimmune condition, whether Hashimoto’s low thyroid, lupus, rheumatoid arthritis, or another autoimmune disease, chronic stress can actively worsen your symptoms and thwart your recovery efforts.

Severe stress can cause you to feel always tired, overly wired, or a fluctuating mix of both. For others, stress manifests as sleep issues, afternoon energy crashes, weight gain, or mood instability.

Many people become so accustomed to chronic stress that they no longer recognize it as a health problem. They’ve forgotten what it feels like not to be stressed.

Understanding whether chronic stress is sabotaging your health is essential, as it directly impacts immune regulation. When stress hormones stay elevated, your immune system becomes more reactive and less able to maintain balance.

Common stress symptoms in autoimmune patients: The tired pattern

• Fatigue and low energy throughout the day
• Difficulty waking in the morning
• Energy crash in the afternoon
• Cravings for sweets, caffeine, or nicotine
• Mood instability or unexplained irritability
• Shakiness, light-headedness, or irritability when meals are delayed
• Inability to stay asleep through the night
• Dizziness when standing up

Common stress symptoms in autoimmune patients: The wired pattern

• Excess weight around the midsection
• Insulin resistance or blood sugar dysregulation
• Insomnia despite exhaustion
• Feeling unrefreshed after sleep
• Hormonal changes (women experiencing facial hair growth, men experiencing breast tissue growth)
• PCOS in women (polycystic ovarian syndrome)

What the adrenal stress test measures

An adrenal stress test, also called an adrenal salivary panel, uses saliva samples to measure how your body handles stress hormones. Your adrenal glands are two small glands sitting atop each kidney that produce cortisol and other stress-response hormones.

For the most useful results, take the test twice: once before starting your health protocol, and again four to six weeks after implementing dietary and lifestyle changes. This reveals whether your treatment plan is actually improving your stress response and immune function.

Chronic stress always has an underlying cause, whether it’s lifestyle factors, blood sugar imbalance, ongoing infection, or unmanaged autoimmune disease itself. People with Hashimoto’s low thyroid, for instance, often experience elevated stress hormones due to thyroid inflammation alone.

As you address these root causes through functional medicine, your adrenal function should improve. If stress markers remain elevated despite dietary and lifestyle efforts, you may need to investigate further for hidden triggers.

How your circadian rhythm affects autoimmune flares

Another critical measure on the adrenal stress test is your sleep-wake cycle, or circadian rhythm.

A healthy circadian rhythm means you wake alert and feel naturally sleepy at bedtime. Cortisol, your primary stress hormone, should peak in the morning and gradually decline towards the evening.

Many autoimmune patients have a reversed circadian rhythm, feeling fatigued in the morning and wired at night. Others experience a sudden cortisol drop in the afternoon, causing a sharp energy crash.

A disrupted circadian rhythm actively worsens autoimmune flares and makes immune regulation harder. Addressing sleep-wake patterns through lifestyle changes and, when appropriate, adrenal adaptogens (herbal compounds that support stress resilience) can be transformative.

What your adrenal stress test results reveal

The adrenal stress test measures multiple markers to determine which stress phase you’re in:

• Alarm reaction: elevated adrenal hormones show your body is in high-alert mode
• Adrenal exhaustion: depleted stress hormones cause persistent fatigue
• In-between patterns: fluctuate between phases

Importantly, people don’t necessarily progress linearly through these phases. You may jump between patterns or remain in one phase for years.

The test also measures immune cells, called total SIgA (secretory immunoglobulin A). Low SIgA indicates that stress has compromised your immune barrier, making you more vulnerable to food intolerances, infections, and immune dysregulation. This is especially relevant for people with autoimmune conditions, where barrier integrity directly affects flare frequency.

Blood sugar balance as the foundation for stress management

One of the most common causes of chronic stress in autoimmune patients is blood sugar dysregulation. Stabilizing blood glucose is essential not only for managing stress hormones but also for preventing autoimmune flares.

While diet and lifestyle modifications form the foundation of stress management, herbal and nutritional compounds, particularly adrenal adaptogens like rhodiola, ashwagandha, and cordyceps, can profoundly support adrenal function and immune resilience.

Functional medicine approaches address both the stress response and the underlying causes driving it, creating sustainable improvement rather than temporary symptom relief.

Contact RedRiver Health and Wellness to work with a functional medicine doctor who specializes in understanding how stress impacts autoimmune conditions.