7 Science-Backed Benefits of Infrared Sauna Therapy

Infrared sauna has been a fixture in wellness conversations for years now - but it has not always been easy to separate genuine benefit from hype. What does the research actually say? And is it worth your time? 

Having seen hundreds of guests walk in tense and walk out transformed, we tend to think yes. But here are seven evidence-supported reasons why, from muscle recovery to mental health, infrared sauna deserves a place in your regular routine. 

First: How Is Infrared Sauna Different? 

Before the benefits, a quick note on how infrared saunas work - because it matters. 

A traditional sauna heats the air around you to 80–100°C. An infrared sauna uses infrared light to heat your body directly, at a much lower ambient temperature (typically 45–60°C). The warmth penetrates deeper into the tissue, which is part of why the health effects differ from a standard steam sauna. 

Most people also find infrared saunas more comfortable - easier to breathe in, less harsh, and easier to stay in for longer. That means more therapeutic time, without the endurance test. 

1. Muscle Recovery 

This is the benefit most athletes and active people come in for, and the research backs it up. Infrared heat increases blood flow to muscles, helping to deliver oxygen and nutrients while flushing out lactic acid and other metabolic waste products. 

Studies have shown that post-exercise infrared sauna use can reduce delayed onset muscle soreness (DOMS) and speed up recovery between training sessions. For runners, gym-goers, cyclists, and anyone who uses their body hard, a regular sauna session can meaningfully shorten the time between feeling wrecked and feeling ready to go again. 

2. Stress Reduction & Nervous System Support 

Chronic stress keeps the body in a state of low-level activation - elevated cortisol, tight muscles, shallow breathing. Infrared heat has been shown to promote the production of heat shock proteins and support the shift from sympathetic (fight-or-flight) to parasympathetic (rest-and-digest) nervous system activity. 

In practical terms: most people feel noticeably calmer after a session. The physical warmth appears to signal safety to the nervous system in a way that is hard to replicate through other means. 

3. Improved Sleep Quality 

Struggling to get to sleep, or to stay there? The mechanism here is well understood. After your core temperature rises during a sauna session and then drops as your body cools down, this temperature drop signals to your brain that it is time to sleep - the same process that happens naturally as evening approaches. 

Research has found that regular sauna use is associated with improved sleep duration and sleep quality. Many Tally guests book an afternoon or early evening session specifically for this reason. If you have been relying on melatonin supplements or counting sheep, a sauna session might be worth trying first. 

4. Cardiovascular Health 

Spending time in an infrared sauna puts mild stress on the cardiovascular system in a way that mirrors moderate exercise - heart rate increases, blood vessels dilate, circulation improves. Research, including a well-known Finnish study tracking sauna use over decades, has associated regular sauna use with reduced risk of cardiovascular events. 

This does not mean sauna replaces exercise. But for people who are recovering from injury, managing a chronic condition, or simply unable to exercise as much as they would like, it can be a genuinely useful way to keep the cardiovascular system active. 

5. Skin Health 

The combination of increased circulation and healthy sweating does good things for skin. Blood is delivered to the surface, bringing oxygen and nutrients. Pores are cleared of build-up. The result, for many regular sauna users, is noticeably improved skin tone and texture over time. 

It is also worth noting what infrared sauna is not doing to your skin: unlike UV tanning, infrared light does not damage the skin at the wavelengths used in a sauna. The glow people describe after a session is from circulation, not irritation. 

6. Support for Anxiety & Mental Health 

There is a growing body of research looking at heat therapy - including sauna - as a potential support for mental health. One mechanism being studied is the effect of heat on serotonin and endorphin production. Another is the activation of the body's heat shock response, which has been linked to anti-inflammatory effects in the brain. 

We are not making clinical claims here - if you are dealing with anxiety, depression, or other mental health conditions, please work with a qualified professional. But for many of our guests, regular infrared sauna has become an important part of a broader mental health toolkit, alongside exercise, therapy, and good sleep. 

7. Detoxification Support 

The body's main detox organs are the liver and kidneys. Sweating is not going to replace them. But it does play a supporting role - certain compounds and heavy metals are excreted through sweat, and the process of working up a genuine sweat in a low-stress environment is something many people do not experience regularly. 

The deeper sweat produced in an infrared sauna - because the heat penetrates further into the tissue - tends to be more effective for this purpose than the surface-level sweat of a gym session. Hydrating well before and after your session helps the body make the most of it. 

How to Get the Most Out of Infrared Sauna 

• Hydrate before and after - aim for an extra 500ml to 1L of water on sauna days 

• Start at a lower heat and build up as your body adapts 

• Once or twice a week delivers meaningful benefits; three or four times per week is common among regulars 

• Combine with a cold shower or cold water after for contrast therapy benefits 

• Combine with float therapy for a full nervous system reset - many guests do sauna first, float second 

Is Infrared Sauna Right for You? 

For most healthy adults, yes - infrared sauna is safe, well-tolerated, and genuinely beneficial with consistent use. As with any health practice, if you have a specific medical condition (particularly cardiovascular or immune-related), check with your GP before starting. 

At Tally, our sauna is private(delete this, our sauna is not private), calm, and easy to use. No experience required. We will walk you through everything when you arrive.