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In this episode of the Thyroid Pharmacist Healing Conversations podcast, I interviewed Andy Smith, PEMF therapy educator and founder of CELLER8. Andy explains how pulsed electromagnetic field (PEMF) therapy and red light therapy interact with the body at the cellular level, and how these technologies may support energy, sleep, recovery, pain management, and overall wellness.
What I found especially powerful about this conversation was Andy’s personal healing story. After emergency surgery and months of recurring infection, antibiotics, pain, and declining mental health, he discovered PEMF therapy during one of the most difficult periods of his life. His experience not only helped him regain his health, but also inspired him to dedicate his career to educating others about this lesser-known healing modality.
We also explore the differences between PEMF and red light therapy, how these tools may complement other wellness practices, and what to consider before investing in an at-home device. If you’ve been looking for gentle, non-invasive ways to support cellular energy, sleep, recovery, or overall resilience, this conversation offers a fascinating introduction to these emerging technologies.
What you’ll learn in this episode:
- How red light therapy may support cellular energy and whole-body healing. Andy explains how red and near-infrared wavelengths interact with the mitochondria and may help the cells produce more ATP – the energy they need to carry out essential functions. He also clarifies why red light and near-infrared light have different applications, from supporting skin health to reaching deeper tissues.
- What PEMF therapy is – and how it differs from red light therapy. Andy breaks down how pulsed electromagnetic field therapy uses low-frequency electromagnetic fields to interact with the body. He explains why PEMF can travel through the body differently than light-based therapies and why he views it as a foundational tool for supporting cellular health.
- How a frightening health crisis led Andy to discover his purpose. Andy shares how an unexplained infection, emergency surgery, and six months of recurring symptoms left him physically and emotionally depleted at age 25. After trying PEMF therapy during his recovery, his experience inspired him to leave his family business and dedicate his career to making the technology more accessible.
- Why PEMF may complement other wellness therapies. Andy discusses why supporting cellular energy and membrane function may help the body make better use of nutrients, supplements, red light therapy, and other modalities. He also shares how PEMF can be paired with practices such as breathwork or incorporated before therapies like hyperbaric oxygen treatment.
- How PEMF therapy may support sleep, energy, recovery, and pain management. Andy describes the changes people commonly report when using PEMF devices, including deeper sleep, improved daytime energy, and gradual reductions in discomfort. He also explains why consistent use matters and offers realistic ways to incorporate sessions into an already busy routine.
- What to look for when choosing a PEMF or red light therapy device. Andy explains why trendy, inexpensive, or multi-therapy products may not deliver therapeutic output. He shares practical considerations for evaluating PEMF mats, red light panels, and facial masks – including device specialization, coil coverage, light intensity, diode placement, and ease of use.
Guest Resources / Connect with Andy Smith
- CELLER8 – Explore Andy’s PEMF devices and red light therapy panels designed for at-home use. (Use code DRWENTZ for 5% off your purchase!)
- The PEMF Podcast – Andy’s podcast explores PEMF therapy and features conversations with specialists from across the health and wellness field.
- Follow Andy on Instagram – Follow Andy for education about PEMF therapy, red light therapy, and cellular health.
PEMF and Red Light Therapy Devices Discussed
- CELLER8 PEMF Devices – Andy’s pulsed electromagnetic field devices are designed to support cellular energy, sleep, recovery, and overall wellness. The mats in particular are wonderful to incorporate into a daily wellness or sleep routine. (Use code DRWENTZ for 5% off your purchase!)
- CELLER8 Red Light Therapy Panels – Full-body and targeted panels that use red and near-infrared light to support mitochondrial function, skin health, and cellular energy. (Use code DRWENTZ for 5% off your purchase!)
- Red Light Therapy Devices – Andy shares what to consider when evaluating these devices, including light intensity, diode placement, distance from the skin, and overall product quality. If you’re looking for something to use at home, consider a company like Lumebox or Orion.
Other Therapies and Wellness Tools Discussed
- Grounding – Discussed as a way to reconnect with the earth’s natural electromagnetic field. Andy recommends allowing enough time for the practice to have a meaningful physiological effect.
- Hyperbaric Oxygen Therapy – A therapy that delivers oxygen under pressure to support healing and recovery. Andy discusses using PEMF before a session and emphasizes that hyperbaric oxygen therapy should be used with appropriate professional guidance. Learn more about hyperbaric oxygen therapy in Episode 41.
- Sauna Therapy – Mentioned as a popular wellness practice used to support sweating and detoxification. For an at-home option, consider a Sunlighten sauna.
- Cold Plunges – Discussed as a tool that may support nervous system regulation, mental clarity, and resilience, although it may not be appropriate or comfortable for everyone with a thyroid condition. (Many of my thyroid girlies and past podcast guests are not cold plunge fans! :-))
- Breathwork – Andy suggests pairing breathwork with a PEMF mat as a practical way to combine wellness practices within a morning or evening routine.
- sHEALed Women’s Health Documentary – A documentary featuring both Dr. Wentz and Andy that explores tools, protocols, and technologies intended to help women improve their health and quality of life.
Supplements Discussed
- Creatine – Andy shares that creatine is the one supplement he would currently choose to keep because he has noticed benefits for both physical performance and mental clarity. Consider Seeking Health Creatine.
Books / Articles
- 8 Benefits of the Infrared Sauna That Can Reduce Symptoms of Hashimoto’s and Hypothyroidism
- Lasers for Thyroid Tissue Regeneration
- Sleep Solutions for Hashimoto’s
- The Mitochondria, Adrenal, and Thyroid Connection
- Podcast Episode 41: Healing Brain Fog, Fatigue, Focus & Mood With Methylene Blue & Hyperbaric Oxygen | Dr. Scott Sherr
Get the Full Episode Transcript
Let’s Connect!
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Got questions? Drop them in the comments! 🙂
About Our Host
Dr. Izabella Wentz
Dr. Izabella Wentz is a compassionate, innovative, solution-focused integrative pharmacist dedicated to finding the root causes of chronic health conditions. Her passion stems from her own diagnosis of Hashimoto’s thyroiditis in 2009, following a decade of debilitating symptoms.
Dr. Izabella Wentz has written several best-selling books, including the New York Times bestseller Hashimoto’s Thyroiditis: Lifestyle Interventions for Finding and Treating the Root Cause, the protocol-based #1 New York Times bestseller Hashimoto’s Protocol: A 90-Day Plan for Reversing Thyroid Symptoms and Getting Your Life Back, the Wall Street Journal bestseller Hashimoto’s Food Pharmacology: Nutrition Protocols and Healing Recipes to Take Charge of Your Thyroid Health, and Adrenal Transformation Protocol. Her latest book, IBS: Finding and Treating the Root Cause of Irritable Bowel Syndrome, is now out in the world, and available here!
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About Our Guest
Andy Smith is the Founder and CEO of CELLER8 and a leading advocate for Pulsed Electromagnetic Field (PEMF) therapy in the UK. His passion for PEMF began after a serious health crisis left him struggling to recover following emergency surgery. When conventional treatments failed to resolve ongoing complications, Andy turned to PEMF therapy and experienced significant improvements in pain, healing, and energy levels.
Inspired by this, he founded NewMed Ltd and later created CELLER8, a PEMF device designed to make wellness support simple and accessible. Andy also hosts The PEMF Podcast, sharing insights from experts in health, recovery, and performance, while helping more people optimize their wellbeing through PEMF technology.
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