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The Benefits of Infrared Sauna: How It Supports Your Health

Dr. Reed Jarvis, DC ·Owner & Chiropractor, The Resilience Lab ·Oct 8, 2025 ·4 min read
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The Benefits of Infrared Sauna: How It Supports Your Health

Infrared sauna therapy has become one of the most talked-about recovery tools in the wellness space, and for good reason. Unlike traditional saunas that heat the air around you, infrared saunas use light waves to warm your body directly, producing a deep, cleansing sweat at a lower and more comfortable temperature. The result is a recovery experience that works on multiple levels at once: circulation, hormones, sleep, skin, and immune function. Here's what's actually happening inside your body and why it's worth adding to your routine.

How infrared sauna is different from a traditional sauna

Most people are familiar with traditional saunas that heat the air to very high temperatures. Infrared saunas work differently. Instead of heating the air, they emit infrared light waves that penetrate directly into your body's tissues, warming you from the inside out at temperatures that are significantly lower and more tolerable.

This means you can stay in longer, sweat more deeply, and reap more physiological benefits without the intense heat of a traditional sauna. The experience is more comfortable, the recovery effects are well-documented, and the science behind why it works is straightforward.

What infrared sauna does for your body

The benefits work across several different systems in the body. Here's a breakdown of what's actually happening during and after a session.

Circulation

Heat exposure dilates blood vessels and raises cardiac output, increasing blood flow to muscle and connective tissue. That delivers oxygen and nutrients to tissue that is repairing and helps clear the metabolic byproducts that accumulate after hard training. The cardiovascular response resembles moderate aerobic exercise.

Hormones and stress

Regular sessions lower circulating cortisol and raise growth hormone acutely. The heat also drives a parasympathetic rebound afterward, which is why most people feel calm rather than drained. For anyone under sustained stress, this is often the most noticeable effect.

Sleep quality

Core temperature rises during a session and then falls afterward. That drop mirrors the natural temperature decline that precedes sleep onset, which makes falling asleep easier. An evening session finished at least ninety minutes before bed is the most effective timing.

Muscle recovery and pain

Heat reduces muscle tension, improves tissue extensibility, and raises pain threshold. For patients dealing with chronic muscular tension or stiffness between visits, it extends the benefit of the soft tissue work done in the office.

Skin

Increased circulation to the skin and a deep sweat support clarity and tone. The effect is gradual and cumulative rather than dramatic, but it is consistently reported.

Immune function

The transient rise in core temperature produces a mild, controlled physiological stress that stimulates immune activity. Population research links regular sauna use to fewer respiratory infections.

The case for regular use

The benefits of infrared sauna compound over time. A single session feels good. Consistent use over weeks and months produces measurable changes in how your body handles stress, recovers from physical demand, and maintains baseline function. Research links regular sauna use to reduced cardiovascular risk, lower all-cause mortality, improved cognitive function, and better metabolic health.

For people who train consistently, the circulation and recovery benefits are particularly relevant. Getting blood moving, flushing out inflammatory byproducts, and reducing muscular tension between sessions allows you to train harder and recover faster without adding more stress to your system.

For people dealing with chronic stress or poor sleep, the hormonal effects are often the most impactful. Consistently lowering cortisol and improving sleep quality changes how your entire body functions. Most people notice the difference within a few weeks of regular use.

A single session feels good. Consistency is what produces measurable change.

How to use it safely and effectively

Like any therapeutic tool, infrared sauna is most effective when used properly. These are the guidelines we give patients.

1

Start conservatively

Ten to fifteen minutes at a lower temperature for your first few sessions. Heat tolerance is trainable and builds quickly. Working up to 25 to 40 minutes over a few weeks is a reasonable progression.

2

Hydrate before and after

You will lose meaningful fluid and electrolytes through sweat. Drink water before the session rather than only after, and replace sodium and potassium if you are sweating heavily or using it frequently.

3

Three to four sessions a week

This is where the research shows the clearest cumulative benefit. More is not proportionally better, and daily use in the middle of a hard training block can add to your total stress load rather than reduce it.

4

Time it around training and sleep

After training or on rest days works well. Finish evening sessions at least ninety minutes before bed so core temperature has fallen. Avoid it immediately before a heavy session, since heat acutely reduces strength output.

5

Know when to skip it

Pregnancy, cardiovascular conditions, uncontrolled blood pressure, and certain medications are all reasons to check with a physician first. If you feel lightheaded, get out. The goal is a controlled stress, not an endurance test.

Where it fits in your overall health picture

Infrared sauna isn't a replacement for the fundamentals. It doesn't substitute for good sleep, solid nutrition, consistent movement, or quality clinical care. What it does is complement all of those things by giving your body an additional pathway to recover, decompress, and repair.

Think of it as a tool that makes everything else work better. Chiropractic care addresses joint function and movement. Dry needling releases muscular tension. Strength training builds tissue capacity. Infrared sauna supports the recovery environment that allows all of those adaptations to actually take hold.

Keep reading

Recovery

The 10-3-2-1-0 Sleep Rule

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The Difference Between Resting an Injury and Recovering From One

Labs & Biomarkers

Heart Rate Variability: What It Means and Why We Measure It

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