Functional medicine — HPA axis
Adrenal Fatigue Treatment in St. Louis
'Adrenal fatigue' is the term most patients search for, even though the clinical reality is more accurately described as HPA-axis dysregulation — a pattern of chronic stress affecting cortisol rhythm, energy regulation, sleep, mood, and recovery. At Simply Health Integrated Medical in St. Louis, this is evaluated with cortisol pattern testing and a functional medicine workup that considers thyroid, gut, blood sugar, sleep, and the broader picture. Dr. Bryan Deloney, DC, MS-Functional Medicine, leads the evaluation.
What to expect
Simply Health Integrated Medical helps patients understand symptoms, goals, and options before recommending a care path.
The next step is a consultation request or direct call so the team can determine whether the clinic is a good fit for your needs.
Why 'adrenal fatigue' is the term people search for
The phrase 'adrenal fatigue' became popular through wellness literature describing the symptom cluster of chronic exhaustion, difficulty getting going in the morning, afternoon energy crashes, sleep disruption, salt or sugar cravings, and stress intolerance. Conventional medicine often dismisses 'adrenal fatigue' as not a real diagnosis. The truth is more nuanced: the symptom cluster is real, the underlying physiology involves the HPA axis (not just the adrenal glands), and the evaluation deserves to be taken seriously even if the literal 'fatigue of the adrenal glands' framing is imprecise.
What HPA-axis dysregulation actually means
The HPA axis (hypothalamic-pituitary-adrenal axis) is the body's central stress-response system. Chronic stress, poor sleep, chronic infection, prolonged inflammation, gut issues, blood sugar dysregulation, and other stressors can shift cortisol rhythm — the normal high-morning, low-evening curve flattens, inverts, or becomes erratic. That dysregulation drives the symptom cluster patients call 'adrenal fatigue.'
How HPA-axis dysregulation is evaluated
Evaluation typically includes a 4-point salivary cortisol panel (morning, mid-day, evening, bedtime) to map the cortisol rhythm, DHEA, ACTH context when relevant, fasting and post-prandial blood sugar markers, thyroid panel (because thyroid and HPA interact), gut function context, sleep quality assessment, and a structured stressor inventory. The picture is usually more revealing than any single test.
What HPA-axis recovery looks like
Recovery is not a supplement protocol. It typically involves sleep restoration (often the highest-leverage intervention), blood sugar stabilization, structured stress-management strategies, addressing upstream gut or thyroid issues, targeted adaptogens or supportive supplements when appropriate, and a realistic timeline. Most HPA dysregulation took months or years to develop and does not resolve in 4 weeks. The evaluation is honest about that.
Why thyroid and blood sugar are part of the workup
Thyroid and HPA axis are tightly linked — chronic HPA stress often suppresses thyroid function, and untreated thyroid dysfunction stresses the HPA axis. Blood sugar dysregulation (reactive hypoglycemia, insulin resistance) drives morning fatigue and afternoon crashes through cortisol pathways. Evaluating these alongside cortisol gives a much clearer picture than cortisol testing alone.
Realistic expectations
Most patients see meaningful improvement within 8 to 16 weeks of structured care. Some take 4 to 6 months for a full reset depending on duration and severity of dysregulation. The plan is iterative — labs and symptoms are tracked, and the plan adjusts as the body responds. The point is sustainable energy and resilience, not a temporary stimulant fix.
Request an HPA-axis evaluation
If you are dealing with persistent fatigue, can't-get-going mornings, afternoon energy crashes, sleep disruption, stress intolerance, and feel dismissed when you describe it — request an HPA-axis / adrenal evaluation. The next step is a real workup that takes the symptom cluster seriously.
Frequently asked
Common questions
▸Where can I get adrenal fatigue treatment in St. Louis?
Simply Health Integrated Medical at 12977 N Forty Dr, Suite 105, St. Louis, MO 63141 offers HPA-axis dysregulation evaluation including cortisol pattern testing. Led by Dr. Bryan Deloney, DC, MS-Functional Medicine. By appointment 24/7. Call (636) 590-4686.
▸Is adrenal fatigue a real diagnosis?
The symptom cluster is real. The literal 'fatigue of the adrenal glands' framing is imprecise — what is actually happening is HPA-axis dysregulation, which is a recognized physiological pattern. Conventional medicine often dismisses 'adrenal fatigue' as a term while still recognizing the underlying physiology when it is described accurately.
▸How is adrenal fatigue diagnosed?
Evaluation typically includes a 4-point salivary cortisol panel to map the daily cortisol rhythm, DHEA, blood sugar markers, thyroid panel, and a structured assessment of sleep, stress, and contributors. The pattern across these tests is what matters, not a single number.
▸What are the symptoms of adrenal fatigue?
Common symptoms include persistent exhaustion, difficulty getting going in the morning, afternoon energy crashes, sleep disruption (especially waking around 3 AM), salt or sugar cravings, stress intolerance, brain fog, mood changes, and reduced exercise tolerance. The pattern matters more than any single symptom.
▸How long does adrenal fatigue take to recover?
Most patients see meaningful improvement within 8 to 16 weeks of structured care. Severe or long-standing HPA dysregulation can take 4 to 6 months or longer for a full reset. The plan is iterative — the evaluation sets milestones at the start.
▸Will supplements fix adrenal fatigue?
Supplements alone rarely fix HPA-axis dysregulation. Sleep restoration, blood sugar stabilization, stress-management strategies, and addressing upstream thyroid or gut issues are usually higher-leverage. Adaptogens and supportive supplements may have a role within a broader plan, but they are not a substitute for the broader work.
▸Is adrenal fatigue connected to thyroid problems?
Yes. The HPA axis and thyroid interact tightly. Chronic HPA stress often suppresses thyroid function, and untreated thyroid problems stress the HPA axis. Evaluating thyroid alongside cortisol is part of a complete workup.
▸Is adrenal fatigue treatment covered by insurance?
Some labs and prescriptions may be covered depending on the plan. The functional medicine evaluation and bundled programs are often not insurance-billed. Cost is reviewed during the evaluation.
Next step
Ready to find the right next step?
If this page sounds like what you are looking for, request a consultation or call the office so the team can help you choose the right starting point.