Integrative Medicine for Healthy Aging & Brain Health

Personalized care to boost health and longevity on the marathon trail of life

Led by triple board-certified Dr. Rachel Kermen, MD

Blending holistic interdisciplinary care with advanced precision medicine

Services Offered

Services are designed to qualify as eligible FSA, HRA, HSA medical expenses

Membership Programs

Learn more about our treatment approach under each program below

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Cognitive Longevity and Dementia Prevention Program

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a man riding a skateboard down the side of a ramp
  • Address modifiable drivers of depression, ADHD and OCD using personalized genetic, metabolic, and lifestyle insights

  • Optimize your mood, cognitive performance, and behavior

Mental Health and Wellness Program

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a man riding a skateboard down the side of a ramp
a man riding a skateboard down the side of a ramp

Chronic Disease Program

  • Prevent, reduce, and possibly reverse chronic disease with a comprehensive nutritional, lifestyle, and metabolic approach

  • Access personalized metabolic and functional medicine testing for common conditions such as cardiovascular disease, diabetes, and asthma

Healthy Aging and Optimal Performance Program

  • Boost your performance, focus, energy and long-term resilience

  • Optimize metabolic health and nutritional status

  • Support healthy weight (with natural strategies and GLP-1 medications when necessary) and hormonal health

  • Protect your brain health based on your history, genetic and metabolic profile, lifestyle, and wellness targets

  • Reduce dementia risk significantly by harnessing the most advanced and scientifically proven strategies

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Laboratory Consultation Visits

Physician-led visits with convenient access and interpretation of laboratory markers not routinely available as part of annual physicals

Includes focused MD intake plus cost of custom laboratory panel

Lab panel is customized for each patient based on budget and goals

*This program is currently only accepting patients from Illinois, Arizona, and Florida

Throughout my career, I've witnessed both the remarkable capacity of the human body to heal and the profound impact that illness can have on individuals and families.

After more than a decade practicing neurological rehabilitation and musculoskeletal care, I became increasingly interested in how we could intervene earlier to preserve health, independence, and quality of life.

My father's battle with glioblastoma made brain health deeply personal. A five-time marathon runner, he embodied perseverance, resilience, and a commitment to healthy living. Losing him reinforced my appreciation for how precious our cognitive abilities, relationships, and everyday experiences truly are.

My personal experiences have also deepened my appreciation for neurodivergence and the importance of recognizing individual strengths, challenges, and differences rather than focusing solely on diagnostic labels.

These experiences inspired me to pursue advanced training in integrative, lifestyle medicine, metabolic psychiatry, and brain health and ultimately establish Marathon Wellness—a physician-led practice focused on healthy aging, cognitive longevity, and integrative mental health.

My approach combines conventional medicine with evidence-informed integrative and lifestyle medicine, emphasizing scientific rigor, personalized care, and genuine human connection. I believe in looking beyond diagnoses to better understand the whole person, identify potentially modifiable contributors to health, and support meaningful, sustainable change.

Whether helping someone preserve cognitive function, address chronic health concerns, explore integrative approaches to mental health, or simply feel and function their best, my goal is the same: to help people take a proactive role in their health.

Ultimately, I believe the goal of medicine should not simply be to help us live longer, but to help us live better—with vitality, resilience, cognitive health, and purpose.

  • Board certified in Integrative Medicine, Physical Medicine and Rehabilitation, and a certified diplomate of the American Board of Lifestyle Medicine

  • Medical School degree from the University of Chicago and completed the Andrew Weil Integrative Medicine Fellowship

  • Medical residency training at Northwestern University and Shirley Ryan Ability Lab, the nation's leading rehabilitation hospital

  • Awarded Outstanding Teacher of the Year Award and served as Chief Resident during residency

  • Served as Medical Director of Rehabilitation Services at a large hospital system and as Assistant Clinical Professor at the University of Chicago

  • Current Psychiatry Redefined Fellow and ReCODE 2.0 certified

Rachel Kermen MD

Do not dig a well when you are thirsty or forge your weapons after the war has begun.

Ancient Chinese Proverb

★★★★★

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"She was terrific. She was better than very good. Very competent, very thorough. Knows how to listen. Warm. Friendly. Exceptional."

"Dr. Kermen is the best. She was thoughtful and complete. She took the time to ask questions and listen to me. She is my idea of what a great doctor ought to be."

Treatment Expertise

You didn’t come this far to stop...

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black blue and yellow textile
  • Healthy aging strategies with whole-person care informed by advanced metabolic medicine

  • Chronic disease mitigation and prevention, hormonal health, healthy weight strategies with GLP-1 support when necessary

  • Dementia prevention and cognitive longevity strategies using proactive brain-healthy interventions

  • Integrative and functional medicine approaches for depression, anxiety, ADHD, and mental wellness

  • Stroke prevention and neuroprotection strategies

  • Mind-body strategies to promote resilience and stress management

  • Individualized exercise, nutrition, and supplement guidance

Prioritize best self

Boost healthspan

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Contact

Why Integrative Medicine?

Reach out to Marathon Wellness for inquiries about our wellness clinic and how we can support your health journey.

Based in the Chicagoland area and virtually serving Illinois, Arizona and Florida

Info@marathonwellness.org