Infrared Sauna Therapy: Does It Really Detox Your Body?

Sweating your way to better health? That’s what infrared sauna therapy is all about – a form of heat treatment that uses infrared radiation to warm your body directly instead of heating the air around you like traditional saunas do.
Unlike that hot, steamy Finnish sauna that feels like you’re being cooked alive 🥵, infrared saunas offer a more comfortable experience with potentially greater therapeutic benefits.
Let’s dive into the science, benefits, and practical tips for using infrared saunas to improve your health. (Spoiler alert: there’s a reason celebrities and health nuts are obsessed with these things.)

So what exactly makes infrared saunas different from traditional saunas?
Traditional saunas heat the air around you (usually to 150-195°F), which then heats your body. Infrared saunas, on the other hand, use infrared panels to emit radiation that’s directly absorbed by your body, heating you up from the inside out.
This means infrared saunas can operate at lower temperatures (usually 120-140°F) while still making you sweat like crazy. More comfortable, but with all the benefits. Win-win.
There are actually three types of infrared saunas you should know about:
Far-infrared (FIR) – The most common type, using longer wavelengths that penetrate deep into your body (1-2 inches). Great for muscle recovery and deep tissue benefits.
Near-infrared (NIR) – Uses shorter wavelengths focused more on skin health and cellular rejuvenation.
Full-spectrum – The premium option combining both far and near infrared for comprehensive benefits.
When you sit in an infrared sauna, those invisible light waves penetrate your skin and generate heat in your body, raising your core temperature. This triggers a bunch of physiological responses similar to what happens during exercise – increased heart rate, more blood circulation, and yes… lots of sweating đź’¦.
Heart Health That’s Actually Impressive
One of the most well-studied benefits of infrared saunas is their impact on cardiovascular health.
Research shows that regular infrared sauna sessions can actually improve heart function in ways similar to moderate exercise. That’s huge for people who have mobility issues or can’t exercise intensely.
Scientists have found that regular sauna use can:
- Lower blood pressure
- Improve vascular function
- Reduce the risk of cardiovascular events
A study published in JAMA Internal Medicine even found that frequent sauna bathing was associated with reduced risk of sudden cardiac death. I’m not saying replace your cardio with sauna sessions, but it’s a nice bonus, right?
Pain Relief That Actually Works

If you’re dealing with achy muscles or chronic pain, infrared saunas might become your new best friend.
The deep heat penetration increases blood flow to muscles and joints, which can:
- Speed up recovery after workouts
- Reduce inflammation
- Decrease pain from conditions like arthritis and fibromyalgia
One clinical study on infrared sauna therapy for chronic pain patients found significant reductions in pain levels after just one session, with continued improvement over time.
This isn’t just placebo effect – the heat genuinely relaxes muscles and increases circulation to painful areas, bringing more oxygen and nutrients while flushing away inflammatory compounds.
Detoxification: The Truth Behind the Hype

Let’s be real: “detox” is one of the most overused wellness buzzwords. But when it comes to infrared saunas, there’s some legitimate science behind the detox claims.
When you sweat in an infrared sauna, you’re not just losing water – your sweat contains small amounts of heavy metals, BPA, and other environmental toxins that build up in your system.
A study in the Archives of Environmental and Contamination Toxicology found that sweat can contain many toxic elements, sometimes in concentrations exceeding those found in urine or blood.
That said, don’t throw away your liver just yet – your body’s built-in detoxification systems (liver, kidneys, digestive tract) are still doing the heavy lifting. Consider sauna sweating as a helpful complement, not a replacement.
Mental Health Benefits That Surprise People
The mental health benefits of infrared saunas might be the most underrated part of the whole experience.
That blissed-out feeling you get after a sauna session? That’s your body releasing endorphins, serotonin, and other feel-good chemicals.
Regular sauna use has been linked to:
- Reduced symptoms of depression
- Lower stress levels
- Improved sleep quality
One Finnish study even found that frequent sauna use was associated with a reduced risk of psychotic disorders. The heat and relaxation essentially act as a form of meditation for many people, calming the nervous system and clearing the mind.
Getting Started: What You Need to Know
If you’re new to infrared saunas, here’s how to begin:
Start slow – 10-15 minutes at a lower temperature (around 120°F) is perfect for beginners.
Hydrate, hydrate, hydrate đź’§ – Drink water before, during, and after your session. You’ll be losing a lot of fluids!
Skip the workout clothes – The fewer clothes you wear, the better the infrared rays can penetrate your skin. Most people go naked or wear just a towel.
Bring a towel – You’ll be sweating. A lot. Bring one to sit on and one to wipe down with.
Time it right – Many people find sauna sessions most beneficial after a workout or in the evening to help with sleep.
Who Should Avoid Infrared Saunas?

While infrared saunas are generally safer than traditional saunas, they’re not for everyone:
- If you’re pregnant, talk to your doctor first
- If you have uncontrolled high blood pressure or heart problems, get medical clearance
- If you’re taking medications that affect heat tolerance, check with your doctor
- If you’ve been drinking alcohol 🍷, skip the sauna until you’re sober
The most common side effects are dehydration and dizziness, both of which can be avoided by staying hydrated and not overdoing your session length.
DIY vs. Spa vs. Home Units
You have a few options for experiencing infrared sauna therapy:
Spa or gym sessions: The easiest way to try it without commitment. Typically $25-50 per session.
Home units: If you’re serious about regular use, portable units start