My Clinical Expertise
Habit Hacking
- •Supplementation Optimization & Biohacking
- •Habit Formation & Modification Coaching
- •Cognitive Performance Optimization Strategies
- •Weight Management & Nutritional Counseling (incl. Keto/LC)
- •Sleep Regulation for Cognitive Recovery
- •Addiction Support
Mental Resilience
- •Management of Depression, Anxiety & Stress
- •Evidence-Based Burnout Prevention Strategies
- •Building Sustainable Stress Resilience
- •Supportive Counseling
- •Holistic Approach to Mental Well-being
- •Solution-Focused Brief Therapy (SFBT) Techniques
Metabolic & Endocrine Disorders
- •Diabetes Mellitus (all types)
- •Hyperlipidemia & Obesity Management
- •Thyroid Disorders (including AITD) & Hyperprolactinaemia
- •Insulin Resistance & Metabolic Syndrome
- •Adrenal Gland Disorders
Gastrointestinal Disorders
- •Inflammatory Bowel Disease (Crohn's, Ulcerative Colitis)
- •Gastritis & Peptic Ulcer Disease
- •Gastroesophageal Reflux Disease (GERD)
- •Irritable Bowel Syndrome (IBS)
- •Small Intestinal Bacterial Overgrowth (SIBO)
Neurological Diseases
- •Alzheimer's Disease & Dementia Management
- •Parkinson's Disease
- •Behavioral & Psychological Symptoms of Dementia (BPSD)
- •Headaches & Migraines
Specialized Interventions
- •Medical Cannabis Management
- •Ketogenic/Low-Carb Interventions
- •Palliative & End-of-Life Care
- •Travel Medicine & Immunizations
My Commitment:
Unlocking Your Peak Potential as a Leader & Founder
As a General Practitioner, Medical Researcher, and Performance Strategist, my practice is exclusively dedicated to High-Achieving Leaders and Founders in the demanding tech and AI space – individuals like you. Drawing from over 43,455 patient consultations and a comprehensive understanding of the full spectrum of primary care conditions (~99.9%), I've engineered a unique, integrative approach. My mission transcends conventional medicine: I partner with you to unlock superior cognitive function, forge unshakeable resilience against executive stress, and architect sustainable peak performance systems.
I understand the relentless drive, the cognitive load, the constant high-stakes decisions, and the pervasive risk of burnout that define your world. My methodology is a potent synthesis of rigorous clinical medicine, cutting-edge performance science, Solution-Focused Brief Therapy (SFBT) principles, and targeted habit modification. This isn't just about treating illness; it's about transforming your health into your most powerful strategic asset.
How I Empower You to Excel & Thrive:
- •Elevate Your Cognitive Edge: We'll optimize the physiological and lifestyle factors crucial for your focus, memory, decision-making clarity, and mental acuity. This involves fine-tuning metabolic health (addressing insulin resistance, strategically leveraging ketogenic/low-carb diets for cognitive benefits), ensuring robust gut-brain axis function for mental clarity, and implementing proactive strategies for neurological protection and enhancement.
- •Build Executive Resilience & Master Stress: I provide evidence-based, actionable strategies to effectively manage anxiety, mitigate the profound effects of chronic stress inherent in leadership, and prevent burnout before it compromises your impact. We work together to build deep psychological endurance and emotional regulation skills, equipping you to navigate high-stakes environments with sustained composure and effectiveness.
- •Engineer Your Physiology for Sustained Energy & Vitality: Through comprehensive diagnostics (including genetic insights and advanced lab markers for a complete physiological picture) and highly personalized interventions, we optimize your endocrine system (addressing hormonal balance for energy and drive, thyroid function for metabolic rate, adrenal health for stress adaptation), enhance sleep architecture for profound cognitive recovery, and manage underlying conditions (like IBD, metabolic syndrome) that can silently sap your energy and focus.
- •Implement High-Performance Habits & Operational Efficiency: Knowledge without execution is merely potential. Using SFBT and proven habit formation techniques, we co-create practical, sustainable systems for health and performance that integrate seamlessly into your demanding schedule. This leads to consistent health improvements, enhanced productivity, and significant efficiency gains in your personal and professional life, freeing up your most valuable resource: time and mental energy.
- •Leverage Advanced & Personalized Medical Interventions: For specific challenges, and where clinically indicated and aligned with your goals, I offer expertise in advanced therapeutic options. This includes medical cannabis consultation (for issues like chronic pain, performance-impacting anxiety, or sleep disruption) and ketogenic therapies, always applied within a robust framework of safety, evidence, and strict regulatory compliance.
My approach is not about temporary fixes. It's a deep, collaborative partnership focused on understanding your unique physiology, psychology, and professional demands. From this foundation, we apply targeted, evidence-based strategies to create lasting, transformative change. I provide holistic, integrated solutions that address the root causes of health and performance bottlenecks, empowering you to lead, innovate, and thrive at your absolute best—consistently and sustainably.
My Approach:
Integrating Medicine, Performance Science & Transformative Coaching
My practice is built on a foundation of rigorous clinical medicine and nearly a decade of diverse experience. However, true health and peak performance, especially for high-achieving leaders and founders, extend far beyond conventional diagnostics and treatment.
My philosophy centers on integrating deep medical knowledge with the science of human performance, mental wellness, and sustainable habit mastery. I believe in moving beyond simply treating symptoms to fundamentally optimizing the human system for resilience, cognitive clarity, and lasting well-being.
Core Pillars of My Approach:
- Evidence-Based Foundation: Every recommendation, whether clinical, lifestyle, or coaching-based, is grounded in current scientific evidence and a mechanistic understanding of physiology and psychology. We prioritize what works, based on data and extensive clinical insight.
- Holistic System Optimization: I view health not as isolated parts, but as an interconnected system. We address metabolic health (including advanced strategies like ketogenic/low-carb diets), gut health (especially managing complex conditions like IBD), endocrine balance, sleep architecture, and mental wellness concurrently, recognizing their profound interplay in overall performance and resilience.
- Transformative Coaching & Habit Mastery: Lasting change requires more than just information; it demands effective implementation. Leveraging principles from Solution-Focused Brief Therapy (SFBT) and the science of habit formation, I partner with clients to translate knowledge into actionable, sustainable daily practices. We focus on building systems for success, leveraging small, consistent actions for compound results. The goal is not just recovery, but transformation towards your peak potential.
- Mental Wellness as a Performance Edge: Recognizing the immense pressures faced by leaders, we proactively address mental wellness, stress resilience, and burnout prevention. Techniques are integrated to manage anxiety and depression, enhance focus, and cultivate the psychological endurance required for sustained high performance.
- Personalized & Advanced Interventions: Where appropriate and evidence supports it, I utilize advanced interventions like medical cannabis consultation and management or targeted ketogenic therapies as part of a comprehensive, personalized plan aimed at achieving mastery over one's health and performance.
- Knowledge Distillation for Action: My commitment to continuous learning and knowledge synthesis means I actively distill complex medical and performance science into clear, actionable strategies tailored to your unique context and goals.
The Outcome:
My goal is to empower you with the understanding, tools, and personalized strategies to not only overcome health challenges but to achieve a state of optimized health, peak cognitive function, unwavering resilience, and sustainable high performance, enabling you to lead and innovate at your absolute best.
My Experience:
My Professional Expertise: Dr. Piotr Jarecki
General Practitioner, Medical Researcher & Performance Strategist for Leaders
With a foundation built on over 43,455 patient consultations and managing the full spectrum (approximately 99.9%) of diseases encountered in primary care, my focus is now sharply honed on empowering High-Achieving Leaders and Founders. My practice is a unique synthesis: rigorous clinical medicine integrated with evidence-based performance science, Solution-Focused Brief Therapy (SFBT) principles, and targeted habit modification. My mission is to elevate your health beyond conventional symptom management, directly optimizing your cognitive function, building unwavering resilience, and ensuring sustainable peak performance by addressing you as a whole, interconnected system. I specialize in crafting actionable strategies for profound stress resilience, effective burnout prevention, enhanced mental focus, and the achievement of peak cognitive states, all seamlessly integrated with comprehensive medical care. My approach delivers holistic solutions meticulously tailored to the intense pressures faced by technology leaders and entrepreneurs. This often involves combining advanced lifestyle optimization with sophisticated interventions like medical cannabis consultation and ketogenic therapies, applied judiciously where clinically appropriate and aligned with your specific goals.
Core Clinical Expertise & Advanced Patient Management: A Deep Dive
My commitment is to provide comprehensive, proactive, and deeply personalized medical care, optimizing every physiological system for your sustained performance, cognitive longevity, and overall vitality.
Comprehensive Diagnostics, Genetic Insights & Personalized Treatment Architecture:
- •I conduct meticulous patient assessments, delving into detailed medical and family histories to uncover potential genetic predispositions (e.g., for familial hypercholesterolemia, Factor V Leiden, MTHFR variants, hereditary cancer syndromes like BRCA mutations), offering initial genetic advisory and guidance on further testing.
- •My physical examinations are systems-oriented, complemented by judicious selection and nuanced interpretation of advanced laboratory markers (e.g., comprehensive hormonal panels, inflammatory markers like hs-CRP, homocysteine, Lp(a), detailed micronutrient status), imaging, and functional testing to achieve precise, early diagnoses.
- •Based on this deep understanding, I formulate highly individualized, evidence-based treatment plans for a vast spectrum of conditions, always ensuring alignment with your demanding performance goals and lifestyle.
Metabolic & Endocrine Optimization – The Engine of Your Energy & Cognitive Clarity:
My lifelong passion for the endocrine system (further detailed in my publications) drives my approach to its optimization.
- •Hormonal Balance & Vitality: Comprehensive assessment and management strategies for Low Testosterone (Male Hypogonadism), and other andropause/perimenopause-related hormonal shifts impacting energy, mood, and cognition.
Metabolic Disorders – Mastering Your Body's Fuel Systems:
- Diabetes Mellitus (Type 1, Type 2, LADA, MODY): Intensive glycemic management (including metformin, advanced insulin regimens, GLP-1 agonists, SGLT2 inhibitors), proactive prevention of microvascular (retinopathy, nephropathy, neuropathy) and macrovascular complications, and specific strategies for maintaining cognitive function and stable energy levels critical for executive function.
- Hyperlipidemia (Dyslipidemia): Advanced lipid panel interpretation (including LDL particle size, ApoB, Lp(a)), cardiovascular risk stratification using tools like SCORE2/ASCVD, targeted lifestyle interventions (dietary, exercise), and modern pharmacological management (statins, ezetimibe, PCSK9 inhibitors when indicated).
- Obesity & Advanced Weight Management: Comprehensive assessment of contributing factors (genetic, metabolic, lifestyle, psychological), development of multi-modal plans incorporating ketogenic/low-carbohydrate dietary interventions, intermittent fasting protocols, personalized exercise physiology, behavioral strategies for emotional eating and habit change, and consideration for anti-obesity pharmacotherapy (e.g., GLP-1 agonists) to enhance metabolic health, reduce systemic inflammation, and optimize body composition for peak physical and mental performance.
- Insulin Resistance & Metabolic Syndrome: Early diagnosis through HOMA-IR, fasting insulin, and clinical markers. Intensive lifestyle interventions (precision nutrition, targeted exercise protocols) to reverse or manage, thereby significantly enhancing energy, cognitive function, and mitigating long-term risks of diabetes, cardiovascular disease, and neurodegenerative conditions.
- Gout & Hyperuricemia: Management to prevent acute attacks and long-term joint/kidney damage.
- •Thyroid Disorders – Regulating Your Internal Thermostat & Metabolism: Including Hypothyroidism (primary, central), Hyperthyroidism, and specialized management of Autoimmune Thyroid Disease (AITD) such as Hashimoto's Thyroiditis and Graves' Disease. This involves precise diagnosis (including full antibody panels), meticulous management of thyroid dysfunction, optimization of TSH/fT4/fT3 levels, and monitoring for systemic impact on energy, mood, weight, and cognition.
- •Adrenal Health & HPA Axis Regulation – Your Stress Response System: Assessment for conditions like Cushing's syndrome (including Dexamethasone suppression testing), Addison's disease (primary adrenal insufficiency), and evaluation of stress-induced HPA axis dysregulation ("adrenal fatigue" or atypical cortisol rhythms like "stiff cortisols"), offering strategies for adrenal support, stress adaptation, and resilience building.
- •Hyperprolactinemia: Thorough investigation of underlying causes (e.g., pituitary adenomas, medication-induced, stress) and appropriate management or referral.
- •Other Endocrine Conditions: Including Polycystic Ovary Syndrome (PCOS) assessment, parathyroid disorders, and pituitary dysfunctions.
Gastrointestinal Health & Gut-Brain Axis Optimization – The Second Brain's Impact:
- •Expertise in managing common GI issues such as Gastritis (acute, chronic, H. pylori-associated), Peptic Ulcer Disease (gastric, duodenal, including H. pylori eradication regimens), Gastroesophageal Reflux Disease (GERD) and Laryngopharyngeal Reflux (LPR), Functional Dyspepsia, Small Intestinal Bacterial Overgrowth (SIBO), and Irritable Bowel Syndrome (IBS) (all subtypes), with a focus on minimizing symptoms, restoring gut barrier integrity, optimizing microbiome health, and leveraging the gut-brain axis for improved mood, cognitive function, and reduced systemic inflammation.
Specialized, comprehensive management of Inflammatory Bowel Disease (IBD) - Crohn's Disease & Ulcerative Colitis:
- Thorough diagnostic workup (clinical assessment, inflammatory markers like CRP/ESR, fecal calprotectin, serological markers, coordination of colonoscopy/gastroscopy with biopsies, MRI/CT enterography).
- Management of acute flares and induction of remission (5-aminosalicylic acid compounds, oral/rectal corticosteroids with careful tapering, nutritional therapy).
- Initiation, monitoring, and co-management of immunomodulators (e.g., azathioprine, 6-mercaptopurine, methotrexate) and biologic therapies (e.g., anti-TNF agents like infliximab/adalimumab, vedolizumab, ustekinumab, JAK inhibitors), including therapeutic drug monitoring.
- Development and implementation of long-term maintenance strategies to prevent relapse and improve quality of life.
- Targeted nutritional counseling (e.g., specific carbohydrate diet (SCD) elements, low-FODMAP for symptom control, exclusive/partial enteral nutrition, micronutrient deficiency correction – iron, B12, Vit D, zinc).
- Proactive monitoring and management of IBD-related complications (e.g., anemia, osteoporosis, malnutrition, extraintestinal manifestations like arthritis/uveitis/skin lesions, fistulas, strictures, abscesses).
- Implementation of colorectal cancer surveillance protocols in long-standing colitis.
- Assessment and utilization of medical cannabis for symptomatic relief (e.g., abdominal pain, cramping, nausea, appetite stimulation, sleep disturbances) in selected IBD patients, as part of a multimodal approach.
- •Celiac Disease & Non-Celiac Gluten Sensitivity: Diagnosis and management.
- •Chronic Liver Conditions: Initial assessment of conditions like NAFLD/MAFLD, viral hepatitis.
Neurological Health, Cognitive Preservation & Mental Acuity:
- •Managing common neurological issues such as Tension Headaches, Migraines (prophylactic and acute treatments), Cluster Headaches, Trigeminal Neuralgia, Peripheral Neuropathies (e.g., diabetic, idiopathic), Dizziness/Vertigo (e.g., BPPV, vestibular neuritis), Bell's Palsy, and Restless Legs Syndrome, focusing on minimizing their impact on daily performance, concentration, and quality of life.
- •Dedicated focus on early detection, diagnostic support, symptomatic management, and strategies to preserve cognitive function and independence in neurodegenerative conditions like Alzheimer's Disease, Parkinson's Disease, Lewy Body Dementia, and Frontotemporal Dementia.
- •This includes managing Behavioral and Psychological Symptoms of Dementia (BPSD) through non-pharmacological approaches first (environmental modification, behavioral strategies, caregiver education), careful and judicious medication titration for agitation/aggression/psychosis, exploration of ketogenic dietary interventions for potential neuroprotective and cognitive benefits, and assessment for medical cannabis for specific symptoms (agitation, pain, sleep disturbances, appetite stimulation).
- •Multiple Sclerosis (MS): Co-management of symptoms and support.
- •Epilepsy & Seizure Disorders: Initial assessment and co-management.
Cardiovascular & Respiratory System Optimization – For Endurance & Vitality:
Cardiovascular Health:
- Comprehensive management of Essential Hypertension (including resistant hypertension, white-coat, masked), utilizing 24-hour ABPM, focusing on achieving optimal blood pressure targets to protect cognitive function and prevent end-organ damage.
- Secondary prevention of Ischemic Heart Disease (post-MI, stable angina management).
- Initial assessment and management of stable Cardiac Arrhythmias (e.g., Atrial Fibrillation including CHADS-VASc/HAS-BLED scoring and anticoagulation, supraventricular tachycardias, premature ventricular/atrial contractions).
- Management of stable Chronic Heart Failure (HFrEF, HFpEF), optimizing medical therapy and patient education.
- Management of Peripheral Arterial Disease (PAD).
Respiratory Function:
- Rapid diagnosis and effective management of Acute Respiratory Infections (e.g., bronchitis, community-acquired/atypical pneumonia, sinusitis, pharyngitis, influenza, COVID-19) to minimize downtime and complications.
- Optimization strategies for chronic conditions like Asthma (GINA guidelines, step-up/down therapy, action plans), Chronic Obstructive Pulmonary Disease (COPD) (GOLD guidelines, inhaler techniques, exacerbation prevention), Bronchiectasis, and Obstructive Sleep Apnea (OSA) assessment and referral, to ensure maximal respiratory capacity and performance.
Musculoskeletal Integrity, Pain Management & Physical Performance:
- •Addressing Chronic Back Pain (lumbar, thoracic, cervical) through comprehensive assessment (identifying red flags, mechanical vs. inflammatory pain), multimodal strategies including targeted pharmacological approaches (NSAIDs, muscle relaxants, neuropathic agents), non-pharmacological interventions (exercise therapy, manual therapy coordination), and coordination of physiotherapy/rehabilitation.
- •Management of Osteoarthritis (all major joints), Rheumatoid Arthritis (co-management), Polymyalgia Rheumatica, Gout, Pseudogout, Fibromyalgia, Tendinopathies (e.g., rotator cuff, Achilles, tennis/golfer's elbow), Bursitis, Plantar Fasciitis, Carpal Tunnel Syndrome, and other soft tissue injuries, with a focus on restoring function, relieving pain, preserving mobility, and enabling continued physical activity and high performance.
- •Osteoporosis & Osteopenia: Screening, prevention, and management.
Specialized Services & Advanced Interventions: Tailoring Your Path to Peak Health
My practice extends beyond standard primary care to offer specialized services designed to proactively enhance your health, manage complex situations effectively, and leverage cutting-edge, evidence-based therapeutic options.
Preventative Medicine, Longevity Strategies & Executive Travel Health:
- •Proactive, personalized cancer screening (colorectal, breast, prostate, cervical, lung, skin, etc.) based on individual risk factors, family history, and the latest guidelines, coupled with actionable risk reduction counseling.
- •Comprehensive travel medicine consultations specifically for global leaders and frequent travelers, including individualized risk assessments based on destination, duration, and activities; necessary vaccinations (Yellow Fever, Typhoid, Hepatitis A/B, Rabies, Japanese Encephalitis, Meningococcal, etc.); detailed advice and prescription for malaria prophylaxis and other geographically relevant chemoprophylaxis; guidance on preventing travel-related illnesses (food/water safety, insect precautions, altitude sickness, jet lag management); and strategies for maintaining health and performance during long-haul flights, including DVT prophylaxis.
- •Targeted immunizations for adult and geriatric populations (routine, seasonal influenza, pneumococcal, shingles, Tdap, HPV).
Patient Empowerment Through Education & Content
Empowering you with deep understanding and actionable knowledge is a cornerstone of my practice.
- •I maintain a strong focus on disease-specific education and fostering self-management empowerment through clear, jargon-free, and comprehensive explanations of your health status, treatment options, and the rationale behind every recommendation.
- •I actively create customized educational materials (detailed summaries, personalized guides, curated resources) and engage in health promotion via select social media channels and digital content production, translating complex medical science and performance research into actionable insights specifically for a discerning, high-achieving audience.
My Professional Standing & Unwavering Commitment
My practice is built on a bedrock of trust, relentless pursuit of knowledge, and unwavering adherence to the highest ethical and professional standards.
- •I ensure unwavering adherence to Polish healthcare regulations and international best practices in evidence-based medicine, guaranteeing ethical, safe, and legally compliant care.
- •I am dedicated to lifelong continuous medical education, actively staying at the forefront of advancements in family medicine, internal medicine subspecialties, lifestyle medicine, neuroscience, performance psychology, medical cannabis research, and neurodegenerative care through conferences, advanced courses, and rigorous literature review.
- •My commitment extends to robust interdisciplinary collaboration with leading medical specialists (neurologists, psychiatrists, endocrinologists, gastroenterologists, oncologists, cardiologists, rheumatologists, etc.), executive coaches, psychotherapists, and other allied health professionals to provide truly holistic, seamlessly coordinated, and optimized care.
- •My background includes experience in clinic operations and quality assurance initiatives, reinforcing my dedication to maintaining the highest standards of patient care, safety, and service excellence.
My Employment:
General Practitioner
Centrum Medyczne Hubert – Wschowa, Poland
University Research Assistant - Poznan University of Medical Sciences
Research Publication
Can Low SHBG Serum Concentration Be A Good Early Marker Of Male Hypogonadism In Metabolic Syndrome?
Impact Factor: 3.319
General Practitioner
24-hour Primary Care Service Unit
Nowy Szpital we Wschowie - Grupa Nowy Szpital Holding S.A.
General Practitioner
Family Medicine
NZOZ Głogowskie Centrum Medyczne – Głogów, Poland
Medical Doctor
Głogowski Szpital Powiatowy Sp. z o.o. – Głogów, Poland
- Internal Medicine
- Pediatrics
- General Surgery & Orthopaedic surgery
- Obstetrics and Gynecology
- Anesthesiology and Intensive Care
- Emergency Medicine
- Psychiatry
- Family Medicine
Medical Doctor - Intensive Care Unit
Wojewódzki Szpital Zespolony w Lesznie – Leszno, Poland
Provided comprehensive care for ICU patients including:
- Documentation, medication management, and intravenous feeding calculations
- Daily physical examinations and procedures for unconscious patients
- Ventilation management and hemodialysis assistance
- Insertion of invasive monitoring devices and central venous catheters
My Education:
M.D. - Doctor of Medicine
Uniwersytet Medyczny im. Karola Marcinkowskiego w Poznaniu (UMP/PUMS)
EQF level 7
Good Clinical Practice (GCP)
National Drug Abuse Treatment NIDA
My Languages:
Mother Tongue
Other Languages
Listening
C2
Reading
C2
Speaking
C2
Writing
C2
Listening
A1
Reading
A2
Speaking
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Writing
A2
My Publications & Research:
Research Publications
Can Low SHBG Serum Concentration Be A Good Early Marker Of Male Hypogonadism In Metabolic Syndrome?
Authors: P Jarecki, WA Herman, E Pawliczak, K Lacka
Journal: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy, 2181-2191
Year: 2019
Citations: 14
Impact Factor: 3.319
The Comparison of Predictive Value Among Chemerin, IL-18 and Hormonal Parameters in Assessing the Risk of Metabolic Syndrome in Men
Authors: P Jarecki, WA Herman, J Losy, K Lacka
Journal: American Journal of Men's Health 15 (4), 15579883211034984
Year: 2021
Citations: 6
Impact Factor: 2.9
Is There a Link between Thyroid Peroxidase Gene Promoter Polymorphisms and Autoimmune Thyroiditis in the Polish Population?
Authors: K Lacka, A Maciejewski, P Jarecki, W Herman, JK Lacki, R Żaba
Journal: International Journal of Molecular Sciences 25 (6), 3312
Year: 2024
Citations: 1
Impact Factor: 5.6
The Elevated Chemerin Plasma Concentrations in Men Diagnosed with Metabolic Syndrome are Correlated The Elevated Chemerin Plasma Concentrations in Men Diagnosed with Metabolic Syndrome are Correlated
Authors: P Jarecki, WA Herman, J Losy, K Lacka
Conference: 20th European Congress of Endocrinology
Year: 2018