Category: Longevity

Infrared Sauna vs. Traditional Sauna

Infrared and traditional saunas both use heat to create a physiological stress response, but they do it differently. Traditional saunas heat the surrounding air, while infrared saunas use infrared energy to warm the body more directly. Both can increase heart rate, circulation, sweating, and perceived relaxation, but the temperatures, experience, and available research differ.

How Does a Traditional Sauna Work?

Traditional saunas typically heat the air inside the room to a high temperature, which then raises skin and core body temperature.

As the body heats up, blood vessels dilate, heart rate increases, and sweating rises as part of the body's cooling response. This creates a form of passive heat stress that shares some cardiovascular characteristics with moderate exercise, although sauna use should not be considered a replacement for physical activity.

Traditional Finnish sauna bathing has also been studied more extensively than most other sauna modalities, particularly in relation to cardiovascular health and long-term health outcomes.

How Is an Infrared Sauna Different?

Infrared saunas use infrared light to deliver radiant heat rather than relying primarily on extremely hot surrounding air.

Because of this, infrared saunas are generally used at lower ambient temperatures than traditional saunas while still producing substantial warmth and sweating. For some people, that can make the experience more comfortable or easier to tolerate.

Infrared sauna research has explored areas including cardiovascular function, chronic pain, exercise recovery, and general heat therapy, but the evidence base remains smaller than that of traditional Finnish sauna bathing.

Do Infrared and Traditional Saunas Affect the Body Differently?

Yes, although both ultimately create heat stress.

A recent study directly comparing traditional sauna and far-infrared sauna found that the two modalities produced different thermoregulatory and cardiovascular responses. Traditional sauna generally created a greater acute heat load under the conditions studied, while far-infrared sauna produced a somewhat different pattern of physiological stress.

That means the choice between them is not simply about which one gets you sweating more.

The dose of heat—temperature, duration, frequency, and how much core temperature rises—may matter as much as the type of sauna itself.

Which Is Better for Cardiovascular Health?

Traditional sauna currently has the stronger body of long-term research.

Observational studies of frequent Finnish sauna use have linked regular sauna bathing with favorable cardiovascular outcomes, while controlled research suggests passive heat therapy can improve aspects of vascular function and cardiovascular physiology.

Infrared sauna may also offer cardiovascular benefits, particularly through repeated heat exposure and vascular responses, but the research is less extensive.

It is therefore more accurate to say that heat therapy itself appears promising for cardiovascular health, rather than declaring one sauna universally superior.

What About Recovery and Muscle Soreness?

Both infrared and traditional sauna may have a role in recovery.

Heat increases circulation and can produce a relaxing effect that some people find useful after exercise. Research on far-infrared sauna has explored whether it may support recovery following strength and endurance training, with some encouraging findings.

However, sauna use does not directly repair muscle damage, and the fundamentals of recovery still matter more: sleep, adequate nutrition, hydration, appropriate training load, and sufficient rest.

Are Saunas Good for Longevity?

Sauna use has become increasingly interesting within longevity medicine because passive heat exposure activates physiological responses connected to cardiovascular function, circulation, thermoregulation, and cellular stress adaptation.

Regular sauna bathing has been associated with favorable long-term health outcomes in observational research, particularly with traditional Finnish sauna use. But association does not prove that sauna use itself causes longer life.

Sauna should therefore be viewed as a potentially useful addition to a healthy lifestyle—not a longevity shortcut.

Is Infrared Sauna Safer Because It Uses Lower Temperatures?

Not necessarily.

Lower ambient temperature may make infrared sauna more comfortable for some people, but both infrared and traditional saunas place thermal stress on the body.

Possible effects can include dehydration, lightheadedness, temporary reductions in blood pressure, and heat intolerance. People with cardiovascular conditions, certain medications, pregnancy, or other medical concerns should discuss sauna use with a healthcare provider.

Hydration and appropriate session duration are also important regardless of which sauna is used.

So Which Sauna Should You Choose?

For most healthy people, the best choice may simply be the one they can use comfortably and consistently.

Traditional sauna offers the strongest historical and scientific evidence base, particularly for cardiovascular health and long-term observational outcomes.

Infrared sauna offers many of the same principles of passive heat therapy at a lower ambient temperature, which some people prefer.

At Omni Longevity, infrared sauna can be incorporated into a broader recovery and longevity strategy alongside exercise, nutrition, sleep, metabolic health, and other personalized therapies. For patients in Cherry Hills and the greater Denver area, the goal is not to chase one wellness modality—it is to use the right tools together to support long-term health, recovery, and performance.