Whatever brought you here has a mechanism.
Symptoms cluster into systems, and systems can be measured, understood, and rebuilt. These are the seven areas where Dr. Simon's practice runs deepest — each one worked the same way: find the mechanism, grade the evidence, fix the foundations, treat the cause.
Find your starting point.
Digestive Wellness
IBS, reflux, bloating, IBD support, food reactions, and the gut-brain axis.
Explore →Cardiovascular Wellness
Blood pressure, cholesterol & ApoB, metabolic risk, and heart-rate-variability training.
Explore →Sexual Health & Wellness
Low libido, erectile changes, hormonal drivers, menopause and midlife intimacy.
Explore →Mental Health & Wellness
Anxiety, low mood, ADHD and focus, stress physiology, and nervous-system training.
Explore →Energy Optimization & Burnout
Fatigue work-ups, HPA-axis and sleep repair, and rebuilding capacity for demanding lives.
Explore →Musculoskeletal Performance & Pain
Back and neck pain, tendon issues, sports care, and pain science done right.
Explore →Chronic Fatigue & Long COVID
Post-viral fatigue, PEM and pacing, POTS, brain fog — from the ND advising Washington State.
Explore →Calm the gut by fixing what drives it.
IBS, reflux, bloating, constipation, and inflammatory bowel support respond best when you treat the mechanism — motility, the microbiome, bile flow, stress physiology, food triggers — rather than silencing the symptom. Care includes conventional work-up and prescriptions where needed, targeted nutrition, evidence-graded botanicals, and the gut-brain tools most clinics skip: the enteric nervous system runs on the same autonomic wiring that biofeedback trains.
- IBS, reflux/GERD, bloating & motility problems
- IBD adjunctive support alongside your GI specialist
- Food reactions, elimination done properly, reintroduction always
- The gut-serotonin-brain axis — why gut and mood travel together

The numbers that decide your decades.
Cardiovascular risk is mostly measurable and mostly modifiable — if you track the right numbers early. This practice manages blood pressure, cholesterol and ApoB, blood sugar, and inflammation with the full toolkit: medication when warranted, nutrition and training always, and HRV biofeedback for the autonomic side of blood pressure that pills don't reach.
- Hypertension — including HRV biofeedback for blood pressure
- Cholesterol, ApoB & particle-based risk, family history strategy
- Metabolic syndrome, prediabetes, blood-sugar stability
- VO₂max and fitness as vital signs

Function follows physiology — here too.
Libido and sexual function sit downstream of hormones, blood vessels, medications, sleep, mood, and relationship stress — which means they respond to real evaluation, not just a pill. Care is direct, judgment-free, and evidence-graded for every option, from testosterone therapy when it's truly indicated to menopausal care, medication review, and the vascular health that underlies performance for every body.
- Low libido in men and women — hormonal, vascular, and medication drivers
- Erectile changes as an early cardiovascular signal, worked up properly
- Menopausal genitourinary symptoms and midlife intimacy
- Honest guidance on peptides like PT-141 — see Peptide Therapy
Sexual health visits are confidential and unhurried. Telemedicine available where clinically appropriate.
Treat the nervous system, not just the narrative.
Anxiety, low mood, ADHD, and stress overload have biology — autonomic state, sleep, blood sugar, thyroid, inflammation, medication effects — that deserves the same attention as the psychology. Dr. Simon works alongside your therapist or prescriber (or helps you find one) and adds what most mental-health care leaves out: measurable nervous-system training through board-certified biofeedback, LENS neurofeedback, and breathwork that has actual trial data.
- Anxiety, panic, and the stuck "on" state — understanding your polyvagal ladder
- Low mood and burnout-adjacent depression, with medical causes ruled out
- ADHD & focus — honest evidence grading, not miracle promises
- Sleep as psychiatric treatment — CBT-I vs. pills

In crisis? Call or text 988 (Suicide & Crisis Lifeline) — clinic care is not emergency care.
Exhaustion is data. Read it.
Running on empty has causes: sleep debt and apnea, iron and thyroid problems, blood-sugar chaos, overtraining, medication effects, depression, and the sustained stress physiology of demanding careers. The energy work-up screens all of it, then rebuilds deliberately — sleep first, fuel second, stress architecture third, training dose matched to recovery. This is the engine room of the executive medicine practice.
- Comprehensive fatigue work-up — labs that actually get checked
- Burnout recovery with nervous-system retraining
- Sleep repair — what sleep debt does to metabolism
- Mitochondria: where energy is actually made

Strong is the treatment plan.
Back and neck pain, tendinopathies, and joint complaints respond to load managed intelligently — not to rest alone, and not to fear. Care combines physical medicine and spinal adjustment, targeted rehab built on pain science, and the muscle-first philosophy that runs through this whole practice: the strength you build is the pain insurance and the longevity asset.
- Back & neck pain, posture myths debunked — what actually matters about sitting
- Tendon & joint issues, return-to-sport progressions
- Pain science & fear-avoidance — retraining the alarm system
- Grip strength & longevity · dosing exercise like medicine

The clinic that believes you — and proves why.
Post-viral fatigue, post-exertional malaise, POTS, and brain fog are physiological — measurable in mitochondria, autonomic testing, and immune markers — and they demand pacing-first care that never tells you to push through. Dr. Simon advises the Washington State Department of Health on Long COVID strategy and runs a dedicated integrative clinic for it.
- The Long COVID Integrative Clinic — evaluation & treatment
- The five mechanisms of post-COVID fatigue
- HRV biofeedback for POTS · brain fog, explained
- Learn at your own pace: The Long COVID Recovery Roadmap course

One method, seven doors.
Educational content throughout this site supports — never replaces — individualized care. For diagnosis and treatment, book a visit; for emergencies, call 911.
Start with the door that matches your symptoms.
Accepting new patients in Seattle and via telemedicine across Washington State.
Book a Meet & Greet