Sauna for Detoxification: How Heat Supports Redox, Drainage, and Natural Flow

Most conversations about detoxification begin in the wrong place. People often ask me which supplement removes heavy metals, which cleanse works best, or how to "speed up" liver detoxification. But before I ever think about helping someone detoxify more aggressively, I ask a different question: Can their body safely and effectively eliminate what is already there?

If the answer is no, forcing detoxification often makes people feel worse, not better.That is because detoxification is not simply about mobilizing toxins, it is about having enough cellular energy to process them, enough healthy drainage pathways to move them, and enough resilience to eliminate them without overwhelming the body.

This is why I spend so much time teaching people about nourishment, redox and drainage before detoxification. Your body is constantly trying to detoxify naturally already. Every day you are exposed to heavy metals, pesticides, plastics, air pollution, mold toxins, pharmaceuticals, hormone byproducts, and countless other compounds. Your body was designed to handle some of this burden. The goal is not to force detoxification. The goal is to create an internal environment where detoxification can happen naturally and efficiently. One of my favorite ways to help accomplish that is through heat. 

Whether it comes from a sauna, natural sunlight, or another therapeutic heat source (such as a bath or exercise), heat does far more than simply make you sweat. When used appropriately, it can help improve cellular charge, support circulation, encourage lymphatic flow, activate protective repair systems, and open one of the body's most underappreciated detoxification pathways: the skin.

That is why sauna remains one of my favorite clinical tools. I personally fell in love with sauna use over a decade ago and have been recommending it ever since! It is one of the few therapies that can simultaneously support three of my key pillars:  redox, drainage, and detoxification while also promoting long-term resilience.

Why I Do Not Start with Detoxification

One of the biggest misconceptions in the health world is that more detoxification is always better.  And while we live in a toxic world, I do not believe that. In fact, I often see the opposite.

Imagine someone whose lymphatic system is sluggish, whose bile flow is poor, whose bowels are not moving regularly, and whose cells have very low energy production. If we suddenly begin pushing toxins out of storage without first improving these systems, where are those toxins supposed to go?  Where is the necessary energy to process them?

Often, they simply get redistributed. This is one reason people can experience headaches, fatigue, body aches, brain fog, skin breakouts, or flu-like symptoms after beginning a detox program that is too aggressive for their current state. They have successfully mobilized toxins but have not created enough capacity to eliminate them. That is why I think about detoxification in a different order.

Instead of focusing on constant "cleanses," I focus on four priorities:

• Nourish the body.

• Build redox.

• Improve drainage.

• Support detoxification.

Notice that detoxification comes last, and certainly appropriate cleanses can play a key role, but ONLY after the body lays the Nourish, Redox and Drainage foundations. When your cells produce more energy (redox), your circulation improves, your lymph moves efficiently, and your natural drainage pathways remain open, detoxification becomes something your body naturally does rather than something you constantly have to force.

Heat fits beautifully into this framework because it supports every step of the process. Most people think of heat simply as something that raises body temperature. But heat can help support healthy blood flow, improve lymphatic movement, encourage mitochondrial function, activate protective proteins, improve recovery after exercise, and increase your body's ability to respond to future stressors.  Heat is a key component to ensuring adequate EZ water inside your body - a primary source of cellular energy. Sweating is only one piece of a much bigger picture. 

How Infrared Heat Helps Recharge Your Cellular Battery

One concept I teach frequently is that your body functions like a biological battery. Your cells are largely made of water, but not all water inside the body behaves the same way.

When water comes into contact with biological surfaces, it forms a highly organized structure known as EZ (Exclusion Zone) Water. This structured water stores electrical charge (like a battery!) and helps create the voltage your cells require to function efficiently.

As I stated previously, one of the most effective ways to build this structured water is through infrared light/heat. Although many people associate infrared with saunas, approximately half of the sunlight reaching Earth is actually infrared light. Every time you spend time outdoors, especially when you can feel the warmth of the sun on your skin, your body is absorbing this energy and charging your EZ water battery.

Infrared light helps expand EZ water, increasing cellular charge and improving the movement of electrons throughout the body. Better electron movement means your proteins work more efficiently, your mitochondria produce energy more effectively, and your cells become more resilient to stress.

This is one of the main reasons I love sauna so much. It allows us to harness many of these same biological effects even when sunlight is limited by season, weather, or geography.

For those of us who live in northern climates, this can become especially valuable during the winter months when we simply are not receiving the same amount of warming infrared light from the sun.

Better Redox Creates Better Detoxification

Redox is one of the most important concepts in health, yet it is rarely discussed. Put simply, redox describes your body's ability to have adequate electrons and to be able to move electrons where they need to go. This facilitates the work of proteins, enzymes, antioxidants, etc.

Healthy redox allows your cells to produce energy efficiently while minimizing unnecessary oxidative stress.  And it is highly dependent on healthy levels of EZ water. Poor redox means less energy, slower repair, impaired signaling, and reduced resilience.

It also makes detoxification much more difficult. Your liver does not detoxify because you purchased the right supplement, it detoxifies because millions of highly coordinated chemical reactions are taking place every second. Those reactions require adequate redox (energy).

If your cells do not have enough energy, detoxification naturally becomes less efficient. This is why I care so much more about improving cellular charge than simply pushing detoxification.

And what I love so much about sauna is that it has the capacity to improve redox, drainage AND detoxification simultaneously (when done correctly!). Heat helps improve redox by expanding structured water, supporting mitochondrial function, and improving the electrical environment inside the cell.  It improves drainage by opening an under-looked drainage system - the skin and it can obviously support detoxification by the ability to sweat out toxins.

More On Drainage

Building redox is only part of the equation.  Your body also needs somewhere for waste products to go. Think of your drainage pathways like the plumbing inside your home.  It does not matter how efficiently your washing machine or toilet is designed to work if every pipe in the house is clogged.

The same principle applies to the human body. Healthy detoxification depends on flow. Your blood must circulate, your lymph must flow.  Bile must move and waste must leave through the bowels. Your skin must be able to sweat.

Heat helps support many of these flow processes simultaneously. As circulation improves, nutrients are delivered more efficiently throughout the body. Oxygen reaches tissues more effectively. Lymphatic flow increases. Waste products become easier to transport toward elimination.

This is another reason I think sauna is such a valuable clinical tool. It does not simply increase one detoxification pathway, it helps create the conditions that allow multiple drainage pathways to work together more effectively.

Sweating Is One of Your Body's Most Powerful Detoxification Pathways

When most people think about detoxification, they think about the liver. The liver absolutely plays an essential role, but it is not the only way your body eliminates waste.

Research has shown that sweating can help eliminate a wide range of compounds, including heavy metals, endocrine-disrupting chemicals like BPA, phthalates, persistent organic pollutants, pesticides, herbicides, pharmaceuticals, PFAS ("forever chemicals"), microplastics, and even certain nanoparticles. In other words, your skin functions like an additional detoxification organ.

This is why I encourage people to understand how to use heat and sweating strategically. When you combine improved cellular charge, better drainage, and regular sweating, you are supporting a detoxification pathway that many people barely use in modern life.

Sauna Does Much More Than Support Detoxification

One reason sauna has received so much scientific attention over the past several decades is because its benefits extend well beyond sweating and detoxification. Heat is what scientists call a hormetic stressor. A hormetic stressor is something that briefly challenges the body, encouraging it to become stronger, more resilient, and better prepared for future stress. Exercise, fasting and cold plunges all work this way.

Specific to sauna, when your body experiences a therapeutic increase in temperature, it responds by activating a remarkable set of repair mechanisms. One of the most important is the production of Heat Shock Proteins. You can think of Heat Shock Proteins as your body's repair crew.

Proteins inside your body have incredibly precise three-dimensional shapes. Their shape determines how well they function. Everyday stress, toxins, inflammation, infections, aging and loss of EZ water can all damage these structures. Heat Shock Proteins help stabilize and refold these damaged proteins so they can function properly again. In many ways, they are like skilled mechanics helping restore damaged equipment before it breaks completely.

Heat also creates what I often describe as a "fever mimic." When you develop a fever naturally during an infection, your immune system shifts into a heightened state of activity. Increasing core body temperature also has the capacity to build more EZ water (redox for the win!). Therapeutic heat exposure via things like sauna can stimulate many of these same protective pathways without requiring you to actually be sick.  Plus, your mitochondria also benefit.

Research suggests that sauna sessions, through PGC-1α upregulation, the same pathway exercise uses, improved mitochondrial enzyme activity after repeated heat stress . All of these processes contribute to something much larger than detoxification. They help build a body that is more resilient in the first place.

Why Some People Feel Worse After Using a Sauna

One of the most common questions I receive is: "Why do I feel terrible after using a sauna?"

There are several possible reasons, but one of the biggest is that the body is simply trying to do too much too quickly. Remember, heat helps expand structured water, improve circulation and lymphatic flow, and begin moving waste products out of tissues. If those wastes suddenly enter the lymphatic system but your drainage pathways are sluggish, you may temporarily feel worse before your body can eliminate them.

Some people experience:

• Headaches

• Fatigue

• Body aches

• Brain fog

• Nausea

• Flu-like symptoms

This does not necessarily mean sauna is bad for you. More often, it means your body needs a gentler approach. I rarely encourage sensitive individuals to jump directly into long, intense sauna sessions.

Instead, I prefer what I call an EZ Water Recharge approach, essentially lower heat sessions (less than 120 degrees F) and shorter duration (I’ve had clients start with 2-5 minutes).  Doing these short recharge sessions on a daily basis (and even building up to multiple sessions per day) greatly reduces excessive stress on the body due to infrared exposure.

How Long Should You Stay in a Sauna?

There is no universal answer.  Your ideal session depends on your current health, your tolerance, the type of sauna you are using, and your overall recovery capacity. For someone just beginning who can handle the intensity of infrared heat, five to ten minutes may be plenty. As your body adapts, many people comfortably work toward longer sessions. Personally, I am much less concerned about the clock than I am about your body's response. Eventually, I want you to reach a comfortable, sustained sweat. 

One phrase I often use is that we are aiming for "rivers of sweat." That does not happen overnight.  It develops gradually as your body becomes healthier, better hydrated, and more capable of regulating heat. And even if you need to step out for a few minutes to cool down before continuing, that is perfectly fine. You’ll find that sweating will easily resume once inside the sauna again.

Does It Matter Which Type of Sauna You Use?

This is another question I hear frequently. While there are differences between traditional saunas, far-infrared saunas, and full-spectrum infrared saunas, I do not want people to become so focused on choosing the "perfect" sauna that they never begin. Each type offers meaningful benefits.

• Traditional saunas heat the surrounding air, warming your body from the outside in.
• Far-infrared saunas use longer infrared wavelengths to gently heat tissues more directly.
• Full-spectrum infrared saunas combine near-, mid-, and far-infrared wavelengths, creating an experience that more closely resembles natural sunlight while also supporting mitochondrial function through near-infrared exposure.

In my clinical experience, consistency matters far more than perfection. The best sauna is often the one you have access to and will use regularly.

Simple Ways to Support Your Sauna Sessions

There are several habits I recommend that can help your body get more from each session.

• Move your lymph beforehand

• Stay hydrated

• Consider a binder if appropriate

• Wipe away your sweat.

• Pay attention to recovery.

Sauna Isn’t Just for Chronic Illness

One of the biggest misconceptions is that sauna is only useful for detoxification programs or chronic illness. I disagree.

Once someone has restored their health, I still encourage regular sweating. Why? Because we continue living in the modern world. Every day we encounter pollutants, plastics, heavy metals, pesticides, artificial chemicals, and countless environmental stressors.

Regular sauna use helps maintain healthy circulation, supports ongoing drainage, encourages cellular repair, builds EZ water and keeps one of our most valuable detoxification pathways functioning well. It can hopefully become a lifelong health practice.

Research has even found that individuals using traditional saunas four to seven times per week for approximately 20 minutes per session experienced approximately a 40% reduction in all-cause mortality, along with substantial reductions in cardiovascular mortality. While many lifestyle factors influence longevity, these findings demonstrate just how profoundly regular heat exposure may support long-term health.

Final Thoughts

I do not think of sauna as simply a way to sweat. Saunas are not simply a way to sweat, they are a way to teach the body how to function more efficiently.

Heat helps recharge your cellular battery, improve redox, support healthy circulation, open drainage pathways, activate repair systems, and encourage one of the body's most underutilized detoxification routes. Most importantly, it does all of this while helping build resilience rather than simply chasing symptoms.

That is why sauna remains one of my favorite foundational tools, it promotes the conditions that allow your body to do what it was designed to do all along.

Ready to Master Heat Therapy?

To make this seamless for you, I created a really cool Heat Protocol that walks you through everything step-by-step.

Inside, we break down:

• All the different types of heat (from sunlight and infrared to traditional saunas and baths) so you know why you would choose one over another.

• What is happening on a cellular level so you actually understand how heat is charging your EZ water and supporting your redox.

• How to safely use heat without triggering detox crashes, overwhelming your drainage pathways, or wiping out your energy.

• My personal, tested, and vetted favorites—so you can skip the guesswork, avoid low-quality tools, and know exactly what is worth your time and investment.

Whether you're brand new to heat or looking to take your routine to the next level, this guide gives you the exact blueprint to do it right.

Click here to get instant access to the Heat Protocol and start supporting your body’s natural flow today!

Frequently Asked Questions About Sauna & Detoxification

Can you detoxify without using a sauna?

Absolutely. Your body is detoxifying every minute of every day whether you use a sauna or not. Your liver, kidneys, digestive tract, lungs, lymphatic system, and skin are all working together to remove waste products and environmental toxins.

Sauna is simply one tool that can help support many of these natural processes simultaneously. I view it as an amplifier, not a requirement.

What if I do not sweat very easily?

Difficulty sweating can be a clue that something deeper needs attention. Sometimes people are dehydrated. Sometimes they are mineral depleted. Sometimes their nervous system is stuck in a prolonged stress response. Other times their lymphatic system is sluggish, their thyroid function needs attention, or their overall cellular energy is simply too low.

Rather than forcing your body to sweat, I recommend working on the foundations first, specifically Nourish and Redox from my NRDD Pillars.

Is More Heat Always Better?

One mistake I occasionally see is people assuming that if a 30-minute sauna session is beneficial, then 90 minutes must be even better. Our biology rarely works that way.

Sauna is a hormetic stressor. Hormesis means that an appropriate amount of stress encourages adaptation, while excessive stress can become counterproductive.

If you consistently feel exhausted for the remainder of the day, develop headaches after every session, or dread using your sauna because of how poorly you feel afterward, it may be a sign that you need shorter sessions, lower temperatures, or additional work on your drainage pathways before increasing the intensity.

What About EMFs From Infrared Saunas?

This is another topic that comes up frequently. Some infrared saunas do produce more electromagnetic fields (EMFs) than others, and I generally prefer lower-EMF models whenever possible.

That said, I also try not to let perfection become the enemy of progress. Clinically, I have found that many people experience tremendous benefits from regular sauna use, even when using units that are not considered ultra-low EMF. One reason may be that the infrared exposure itself helps build structured water and cellular charge, making the body more resilient overall.

If you are particularly sensitive to EMFs or are purchasing a sauna for long-term use, choosing a lower-EMF model is certainly worthwhile. But I would not allow fear over finding the "perfect" sauna to prevent you from benefiting from heat altogether.

Scientific References & PubMed Support: 

Study: "Exclusion Zone Phenomena in Water—A Critical Review of Experimental Findings and Theories." PubMed ID (PMID): 32708867

Study: "Arsenic, Cadmium, Lead, and Mercury in Sweat: A Systematic Review." PubMed ID (PMID): 22505948

Study: "Human Elimination of Phthalate Compounds via Bio-Monitoring of Biofluids." PubMed ID (PMID): 23213291

Study: "Human Excretion of Bisphenol A: Blood, Urine, and Sweat (BUS) Study." PubMed ID (PMID): 22253637

Study: "Role of Heat Shock Proteins in Cellular Protection and Adaptation to Thermal Stress." PubMed ID (PMID): 28882012

Study: "Heat Stress Stimulates Mitochondrial Biogenesis and Upregulates PGC-1α Expression in Muscle Tissue." PubMed ID (PMID): 24713735

Study: "Association Between Sauna Bathing and Fatal Cardiovascular and All-Cause Mortality Events." PubMed ID (PMID): 25705828