Infrared Light, Sauna Science, and Personalized Wellness with Connie Zack
Podcast Duration : 1:03:13
Podcast Publish Date : 9/23/26
What happens when you look beyond temperature and start thinking about a sauna as a source of precisely delivered light and energy? In this episode of Take Back Your Health®, Dr. Amy Myers reconnects with Connie Zack, co-owner of Sunlighten and Sunlighten Day Spa, for a detailed conversation about infrared sauna technology, wavelength science, and practical ways to build a consistent wellness routine.
Connie shares the personal story that inspired her family to make infrared technology more accessible, explains the differences between steam, traditional, and infrared saunas, and breaks down the roles of far-, mid-, and near-infrared light. The conversation also explores heat shock proteins, personalized sauna use, light therapy, and the importance of evaluating wavelengths, separation, testing, and proximity when comparing products.
What You’ll Learn in This Episode
- How infrared saunas differ from steam and traditional heat saunas.
- Why far-, mid-, and near-infrared are discussed as distinct parts of the infrared spectrum.
- How near-infrared and red light differ in visibility, depth, and wavelength discussions.
- What Connie explains about heat shock proteins and the body’s response to controlled stress.
- Why sauna routines may be personalized around goals such as sweating, relaxation, energy, or consistency.
- How preheating may matter when the goal is sweating, while infrared energy begins as soon as the sauna is turned on.
- What to consider when evaluating light-therapy products, including wavelength, separate delivery, independent testing, patents, and proximity to the body.
- Connie’s three practical takeaways: create time for personal connection and intention, stay hydrated, and choose a consistent wellness practice that fits your needs.
Infrared Light, Heat, and Wavelengths
Connie explains that steam and traditional saunas primarily transfer energy through hot air, while infrared technology uses light energy that works more directly with the body. She describes far-infrared as heat-delivered energy, mid-infrared as a distinct wavelength associated with muscles and tissues, and near-infrared as invisible light delivered through LEDs. The conversation also addresses red light and why wavelength specificity matters when evaluating light-based products.
Heat Shock Proteins and Personalized Sauna Use
The conversation explores the idea that infrared heat can create a controlled stress response and activate heat shock proteins. Connie emphasizes that sauna use is personal: some people may preheat to encourage sweating, while others may use the sauna without waiting for a particular temperature. The discussion highlights consistency, personal goals, available time, and how the body responds over time.
Choosing a Sauna or Light-Therapy Product
Connie recommends looking for clear information about the wavelengths included, whether those wavelengths are separately delivered, and whether the product has undergone independent testing. She also discusses Sunlighten’s Solo system, mPulse technology, wellness programs, near-infrared and red-light products, and the upcoming Amplify Red sauna mentioned in the conversation.
About Connie Zack
Connie Zack is the co-owner of Sunlighten and Sunlighten Day Spa. Sunlighten’s official story describes how Connie and Aaron Zack were inspired by the transformation of Connie’s brother and committed themselves to making infrared light more accessible. Connie’s Instagram profile identifies her as a co-founder of Sunlighten.
Resources and Links
Connect with Dr. Amy Myers
Sunlighten Sponsor Offers
🚨 Special Offer 🚨
Sunlighten is a sponsor of Take Back Your Health®. Visit Sunlighten to learn more about Sunlighten infrared saunas and access Dr. Amy’s $200 savings offer.
🚨 Exclusive Sunlighten Savings 🚨
Dr. Amy Myers has used a Sunlighten sauna for 16 years to support circulation, the body’s natural detox pathways, and relaxation. Discover Sunlighten’s mPulse Intelligent Sauna with PulseIQ™ technology, along with Amplify and the portable Solo System. Visit the Dr. Amy Myers Sunlighten offer page to save up to $2,100 plus free shipping. Use code Dr. Amy Myers.
Episode Timestamps
- 00:00 Welcome and Connie Zack’s connection with Dr. Amy
- 01:09 Connie’s brother’s health journey and the beginnings of Sunlighten
- 03:41 Infrared, traditional, and steam saunas: what is the difference?
- 05:39 How infrared energy works differently from traditional heat
- 08:32 The multidimensional benefits of infrared sauna technology
- 09:41 Near-, mid-, and far-infrared: how each wavelength works
- 14:05 Infrared wavelengths, precision, and the science behind them
- 16:27 Near-infrared light and why wavelength matters
- 18:46 Red light, cellular signaling, and mitochondrial function
- 20:14 Research on infrared, inflammation, mood, cardiovascular health, and metabolic health
- 22:10 Heat shock proteins, hormesis, and building resilience
- 25:22 How to get started with an infrared sauna
- 27:45 Choosing between the Solo Sauna and larger sauna models
- 31:21 Sauna wellness programs, consistency, and session length
- 31:44 Should you preheat your infrared sauna?
- 33:13 Sweating, detoxification, and heat shock protein activation
- 37:09 Using the sauna when you have limited time
- 39:18 Showering after sauna sessions and sweat exposure
- 41:53 Dr. Amy’s castor oil sauna routine
- 45:13 Sauna success stories involving sleep, mood, and nervous-system support
- 48:26 Sunlighten’s upcoming Amplify Red sauna
- 51:38 How to evaluate red-light and near-infrared products
- 53:53 Three ways to take back your health
- 56:31 Closing conversation
