12 things in your home that Lead to Heart Disease
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Slow Heart Rate: Sinus Bradycardia

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Happy female nurse measuring heart rate of elderly man

John, a 51-year-old librarian, prided himself on his calm demeanor. So did his heart, it seemed, which beat so steadily and slowly that his doctor raised an eyebrow during a routine check-up. 

With a pulse persistently hovering around 55 beats per minute, John was the textbook case of sinus bradycardia. But was his heart’s tranquility a sign of peak fitness or a clue to a hidden ailment? This question marked the beginning of John’s journey to the heart of the matter.

What is Bradycardia? 

Imagine your heart as a house with four rooms — two upper chambers called atria and two lower chambers known as ventricles. Normally, electricity flows smoothly through these rooms, turning lights on and off in a way that keeps the heart beating in a steady rhythm between 60 and 100 beats per minute. 

Sinus bradycardia is like having a relaxed electrician — the sinus node — who takes his time walking through the first room (the right atrium) to flip the switch. This leisurely pace can be perfectly fine for some, especially fit individuals like athletes, whose hearts have become very efficient. But sometimes, this slow electrician might be a little too laid-back, causing not just a slow heart rate but also troubling signs that all is not well in the ‘heart house.’ Individuals with bradycardia have a heart rate that regularly hangs below 60 beats per minute.  

When symptoms such as shortness of breath, feeling weak, or fainting spells (syncope) start showing up, it’s like the house’s lights flickering erratically. It means that the electricity isn’t flowing as it should, and the occupants — your body’s organs — are alerting you that something’s wrong.

What Causes Bradycardia? 

Lifestyle choices cast long shadows over cardiac health. For individuals like John, whose days are spent among stacks of books and silent reading rooms, the lack of physical activity could be a contributing factor. However, a deep dive into his daily routine revealed more than a sedentary lifestyle; it exposed a love for weekend wine tastings and a fondness for sugar-laden coffee drinks. John’s diet veered far from that of our ancient ancestors. 

Moreover, John struggled with sleep, waking several times throughout the night. This meant that he slept well into the daylight hours some days. In fact, he rarely saw the sun- another contributing factor to his bradycardia. 

John’s narrative took an unexpected turn upon the discovery of mold in his quaint home’s basement. Mycotoxins, sinister byproducts of mold, have been implicated in various health concerns, with heart rhythm disturbances like bradycardia among the suspected consequences.

Toxins often lurk in the corners of our environments, hidden threats that can cause damage to the heart. From the heavy metals in water pipes to the pesticide drifts from a nearby farm, these environmental interlopers have been known to interfere with the electrical impulses that keep the heart ticking in time.

Path to a Healthy Heartbeat

John recognized that speculation would not solve his slow heartbeat. Aware that the root cause of his sinus bradycardia could be elusive, he decided to rely on concrete data. “Test, don’t guess,” became his mantra.

With this mindset, John sought comprehensive lab tests. Blood work would illuminate his body’s status quo, revealing clues hidden in the levels of his thyroid hormones, electrolytes, and indicators of inflammation or infection. Just as a homeowner would test the air quality after finding mold, John’s doctors needed to assess the internal environment of his body to detect any biological invaders or imbalances that could be contributing to his heart’s irregular rhythm.

The lab results would serve as a guide, shedding light on his health. This knowledge would empower John to make precise adjustments to his lifestyle and environment, targeting the underlying issues rather than merely silencing the symptoms.

Next Steps 

John’s experience highlights the intricate interplay between lifestyle, environment, and health in cases of sinus bradycardia. Understanding this slow heart rate requires more than a glance at the pulse; it demands a comprehensive view of the patient’s life. Health experts at NHD recognize that every individual’s heart story is unique and requires a personalized approach.

If you’re navigating the complexities of a slower heartbeat, NHD offers expertise in unraveling these mysteries. To get started, NHD proposes a complementary 20-minute discovery call, an opportunity to begin identifying the factors contributing to your sinus bradycardia and to start charting a course toward your 100 year heart. 


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About Dr. Keith Smigiel NP, DC

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Dr. Keith Smigiel is a regenerative medicine physician and pain management specialist. He takes an integrative approach to medicine, focusing on customized solutions tailored to individual needs. Using advanced, non-surgical treatments, Dr. Smigiel stimulates your body’s ability to naturally heal itself.

Dr. Smigiel helps people suffering from conditions such as chronic pain and erectile dysfunction, to hair loss and weight gain. Combining treatments such as PRP Therapy, Ozone, Neural Prolotherapy, and IV Infusions with functional rehabilitation, he helps you look and feel better.

He heals the body, instead of just treating the symptoms!

With his professional qualifications as a certified family nurse practitioner, a doctor of chiropractic, and a fellow of the International Academy of Medical Acupuncture, Dr. Smigiel offers patients comprehensive care from a broad perspective of conventional and alternative medicine. He also has extensive experience in functional rehabilitation and chronic pain management.

Dr. Smigiel is married to Angela and has two children, Sophia and Larz. When he’s not busy helping patients, he enjoys hiking, mountain biking, motocross, and boating.

About Dr. James Kneller, M.D., Ph.D., FHRS

Dr. James Kneller, M.D., Ph.D., FHRS

Dr. James Kneller is one of the nation’s leading heart rhythm specialists. Dr. Kneller is certified by the American Board of Internal Medicine (ABIM) in Clinical Cardiac Electrophysiology, Cardiovascular Disease, and Internal Medicine.

As a Fellow of the Heart Rhythm Society (FHRS) and Certified Cardiac Device Specialist (CCDS), Kneller provides comprehensive patient care, combining best medical practice with invasive procedures using state-of-the-art technologies to treat heart rhythm disorders.

Beyond guideline-directed therapies, Kneller is passionate about optimized personal health. With a deep interest in complimentary alternative medicine (CAM), he strives to reduce the need for pharmaceuticals, invasive procedures, and exposure to harmful radiation. With Natural Heart Doctor, he strives to help each and every client to Live Well, Eat Well, and Think Well to attain their 100-year heart!

About Dr. Lauren Lattanza NMD, FACC

Dr. Lattanza Office Visit with Patient

As a Naturopathic Physician, I am trained to treat the whole person and get to the root cause of disease.

I went to Arizona State University where I graduated with a bachelor’s degree in psychology with a depth in physiology and minor in Spanish. After my undergraduate degree I was working on prerequisite classes towards medical school, which is when I came to learn that my values identified best with the principles of naturopathic medicine. I knew that I wanted to help patients identify the causes of disease and be able to offer treatments which would improve their health rather than simply treating symptoms.

I dedicated the next 4 years to the Southwest College of Naturopathic Medicine in Tempe, Arizona where I attained my Doctorate of Naturopathic Medicine. I served as Class President all 4 years, Board of Trustees – Student Trustee, spoke as the Club President for our branch of Toastmasters, and was voted by my peers and attending physicians to earn the Outstanding Leadership Award for the Class of 2020. Throughout medical school I took it upon myself to work alongside MDs, DOs, chiropractors, and functional medicine practitioners in addition to naturopathic physicians.

As a Spanish speaking student, I was able to volunteer with community clinics around Phoenix and provide free healthcare to low-income families. Due to this combined exposure, I came to find my passion in treating cardiometabolic and digestive disorders that are all too common, yet largely preventable. I took the opportunity to learn the broad spectrum of healthcare so I can ensure that I am able to provide my patients with the best options.

About Dr. Jack Wolfson DO, FACC

Dr. Wolfson Office Visit with Patient

Dr. Jack Wolfson is a board-certified cardiologist, Amazon best-selling author, husband, father, and the nation’s #1 Natural Heart Doctor.

For more than two decades, more than one million people have enjoyed the warmth, compassion, and transformational power of his natural heart health courses and events.

Dr. Wolfson is the founder of Natural Heart Doctor Scottsdale, his heart health practice in Arizona, and Natural Heart Doctor, an online resource center with natural health information. Doctors from across the globe reach out to Dr. Wolfson for training and education in holistic health practices.

He has been named one of America’s Top Functional Medicine Doctors and is a five-time winner of the Natural Choice Awards as a holistic M.D. Dr. Wolfson’s work has been covered by more than 100 media outlets, including NBC, CNN, and the Washington Post. His book “The Paleo Cardiologist: The Natural Way to Heart Health” was an Amazon #1 best-seller.

Dr. Wolfson and his wife Heather have four children and are committed to making the world a better place to live. They provide for those in need (including animals) and support natural health causes through their philanthropic efforts.


Our chiropractor is an expert at adjustments and holistic chiropractic care and works closely in conjunction with the other health care experts at Natural Heart Doctor.

Call (480) 535-6844 for details and scheduling.

IV Therapy

We use specially formulated natural vitamins and minerals that are injected into a vein to prevent or treat dehydration. Ideal for people in Arizona.

Call (480) 535-6844 for details and scheduling.


Stimulate your body’s natural healing abilities and promote physical and emotional well-being with acupuncture at Natural Heart Doctor.

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Health Coaching

Our health coaches use evidence based skillful conversation, clinical interventions, and strategies to engage you actively and safely in health behavior changes.

Call (480) 535-6844 for details and scheduling.

Cardio Tests

We use the most advanced testing in the world to assess heart health and to identify the root cause of your health issues.

Call (480) 535-6844 for details and scheduling.

Office Visits

Schedule an office visit with one of our cardiologists, holistic physicians, chiropractor, or health coaches.

Call (480) 535-6844 for details and scheduling.

Frequently Asked Questions

I’d like to receive an online second opinion from Natural Heart Doctor. What do I do next?

You can initiate a second opinion online through our website at any time. To begin, select the team member you’d like to speak with and open an account.

Click here for cardiologist Dr. Jack Wolfson.

Naturopathic Medical Doctor Dr. Lauren Lattanza. Get details.

Naturopathic Medical Doctor Dr. Tonia Rainier. Get details.

Click here for  Natural Heart Doctor Health Coach.

Alternatively, you can email health@naturalheartdoctor.com. A member of our care team will help guide you through the process of starting a second opinion.

What is the cost of a Natural Heart Doctor Online Second Opinion?

The cost for most second opinions varies by team member. This fee includes information collection, a phone or video consultation, a second opinion from a Natural Heart Doctor specialist and guidance throughout the process from your personal Care Team at Natural Heart Doctor.

Cardiologist Dr. Jack Wolfson’s Second Opinion Fee is $1500.

Holistic Physician’s Dr. Lauren Lattanza’s Second Opinion Fee is $250.

Naturopathic Physician Dr. Tonia Rainier’s Second Opinion Fee is $250.

Note: We apply the Online Second Opinion Call fee as a credit to any future consultations with Natural Heart Doctor, should you choose them.

Will my insurance cover the cost of a Natural Heart Doctor Online Second Opinion?

Most likely, no. Most health plans do not cover online second opinions or consultations. You are responsible for the cost of our second opinion. Natural Heart Doctor cannot file a claim with your insurance carrier, nor can we provide a procedure (CPT) code for this service.

What is the timeline to receive an online second opinion?

We do our best to schedule your second opinion as quickly as possible. Typically, it takes 5 to 7 business days after your information has been collected to receive your phone or video online second opinion.

What information do you need in advance of our call?

Our office will send you a short questionnaire to complete and return. We DO NOT need your complete medical records.

How many questions can I ask the expert during our call?

You may ask a maximum of five questions. This is to ensure that the expert has sufficient time to devote to each question. All questions must be finalized before your online meeting.

What should I expect to receive once my second opinion is complete?

You will receive a summary of our discussion along with our second opinion. The second opinion will be in written form. After you have reviewed the second opinion, a Natural Heart Doctor clinician will follow up with you by phone to address general medical questions about the information provided in the second opinion.

What if I have follow-up questions for the expert after I have reviewed my second opinion?

If you have a clarifying question about an expert’s response to one of the questions in your second opinion, and the Natural Heart Doctor clinician is unable to address it, then you may request a follow up session for an additional fee. 

Is my medical and payment information secure?

Natural Heart Doctor is strongly committed to protecting the privacy and security of all our patients. Our website meets all federal requirements for protecting personal health information under the Health Insurance Portability and Accountability Act (HIPAA). All financial transactions are processed by Natural Heart Doctor securely using industry standard payment processing tools.

I would rather visit Natural Heart Doctor for an in-person appointment. What should I do next?

If you would prefer an in-person appointment at Natural Heart Doctor instead of an online second opinion, please call (480) 535-6844 for details and scheduling.

Can I schedule a follow up appointment with the specialist who provided my online second opinion?

Yes, we’re happy to help you on an extended basis. Our clinician can discuss options with you when presenting our second opinion summary.