Not medical advice. I am a software engineer, not a physician. This page documents my own protocol and the research I read while building it. Talk to a qualified clinician before changing your supplementation, diet or any treatment. Lab reference ranges quoted here vary by laboratory and by individual.
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The adrenal glands, small triangular organs atop each kidney, produce hormones essential for life: cortisol (stress response, glucose regulation, anti-inflammation), aldosterone (blood pressure, electrolyte balance), DHEA/DHEA-S (precursor to testosterone and estrogen), and adrenaline/noradrenaline (fight-or-flight response). Cortisol follows a circadian rhythm — peaking 30-45 minutes after waking (cortisol awakening response) and reaching its lowest point around midnight — which is critical for energy, alertness, and sleep quality.
Chronic stress dysregulates the hypothalamic-pituitary-adrenal (HPA) axis, leading to either chronically elevated cortisol (early stages) or blunted cortisol response (later stages). Both states have profound effects: elevated cortisol drives visceral fat accumulation, muscle catabolism, insulin resistance, immune suppression, and testosterone suppression. Blunted cortisol causes fatigue, poor stress tolerance, and impaired morning alertness.
The cortisol-DHEA ratio: DHEA-S acts as a counterbalance to cortisol. An elevated cortisol-to-DHEA ratio indicates chronic stress with inadequate recovery. DHEA declines approximately 2-3% per year after age 25, while cortisol tends to increase with chronic stress. Monitoring both provides a more complete picture of adrenal health than cortisol alone.
The HPA axis operates through a negative feedback loop: the hypothalamus releases CRH, the pituitary releases ACTH, and the adrenals produce cortisol. Cortisol then feeds back to suppress CRH and ACTH. Chronic stress disrupts this feedback, leading to HPA axis dysregulation.
Chandrasekhar, K., et al. (2012). A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of Ashwagandha root in reducing stress and anxiety in adults. Indian J Psychol Med, 34(3), 255-262. PubMed 23439798
These supplements support adrenal balance through HPA axis modulation, DHEA restoration, and nervous system calming.
| Supplement | Role | Timing | Details |
|---|---|---|---|
| Ashwagandha (KSM-66) | Adaptogen; reduces cortisol 27-30% in chronically stressed individuals | 300 mg 2x/day with meals (morning + evening) | Ashwagandha |
| 7-Keto DHEA | Non-hormonal DHEA metabolite; supports metabolic rate and cortisol balance without androgenic effects | 25-50 mg/day, morning | 7-Keto DHEA |
| L-Theanine | Increases GABA and alpha waves; counteracts stress-induced excitatory neurotransmitter surge | 200 mg 1-2x/day (stress moments or evening) | L-Theanine |
| Magnesium (Glycinate) | Modulates HPA axis via NMDA receptor regulation; calming; supports sleep quality | 200-400 mg elemental Mg/day, evening | Magnesium Glycinate |
The stress-recovery stack: Ashwagandha (morning + evening for cortisol modulation) + L-Theanine (as needed for acute stress) + Magnesium Glycinate (evening for sleep and HPA reset). This combination addresses both chronic HPA dysregulation and acute stress episodes while supporting the nighttime cortisol nadir essential for deep sleep and growth hormone release.
Adrenal function assessment requires timing-specific cortisol measurements and DHEA-S, as a single random cortisol value is often uninformative.
| Test | What It Measures | Frequency | Details |
|---|---|---|---|
| Cortisol (AM, fasting) | Morning cortisol peak; optimal 10-18 mcg/dL at 7-9 AM; low values suggest adrenal insufficiency | Every 6-12 months | Lab Tests |
| 4-Point Cortisol (salivary) | Cortisol rhythm across the day (morning, noon, evening, night); reveals circadian disruption | Every 12 months (if HPA dysfunction suspected) | Lab Tests |
| DHEA-S | Adrenal androgen precursor; declines 2-3% per year; counterbalances cortisol effects | Every 12 months | Lab Tests |
One cortisol test is not enough: A single morning cortisol only captures one moment. The 4-point salivary cortisol test reveals the shape of your cortisol curve throughout the day. Common patterns: (1) Flat curve (chronically elevated or low all day) = HPA dysregulation, (2) Reversed curve (low morning, high evening) = disrupted sleep architecture and impaired recovery, (3) Normal curve with elevated baseline = chronic stress without adaptation failure.
Cortisol/DHEA ratio outperforms single cortisol measurement for HPA assessment. A 2026 study in Frontiers in Psychology validated that the cortisol/DHEA ratio (CD) provides a more comprehensive reflection of HPA axis functional status than cortisol alone, while the cortisol/cortisone ratio (CC) adds additional insight into local cortisol metabolism. Hair cortisol analysis now serves as a multi-month biomarker of chronic HPA axis stress exposure, while the cortisol awakening response (CAR) is recognized as a biomarker of HPA axis integrity linked to mood disorders, cognitive decline, and long-term neurological outcomes. Integrative treatment approaches for HPA dysregulation — including adaptogenic herbs, mind-body therapies, and targeted nutraceuticals — have been formalized in a 2025 American Journal of Medicine review.
Chronic stress drives autoimmunity through HPA axis cortisol dysregulation. A 2025 review in the International Journal of Molecular Sciences documented how chronic psychological stress disrupts HPA axis feedback mechanisms, leading to sustained cortisol exposure, altered glucocorticoid receptor sensitivity, and downstream neuroimmune alterations. Over time, glucocorticoid resistance develops in immune cells, paradoxically increasing inflammation despite elevated cortisol. This bidirectional relationship between cortisol and immune function explains why chronically stressed individuals experience both suppressed acute immunity and elevated autoimmune risk.