5 Potential Health Benefits of Infrared Sauna Therapy

The idea of using a sauna for relaxation is nothing new, but another category of sauna bathing is growing in popularity: infrared saunas.
An infrared sauna is a type of therapy that uses light to heat your body, explains Kelly Simms, ND, a doctor of naturopathic medicine in Chicago. But this light is infrared, which exists on the nonvisible light spectrum, she says.
While infrared saunas are in the same general category as dry-heat saunas, they operate using nonvisible light, so the air inside stays at a relatively comfortable 110 to 120 degrees F, Simms says.
And because an infrared sauna slowly builds heat, you can stay in it longer than a traditional sauna. The proposed health benefits come from the fact that infrared heats your body directly, and the warmth penetrates more deeply than traditional saunas.
At present, more research still needs to be done on infrared sauna therapy to fully understand all the potential health benefits, especially considering that dry heat and infrared might not affect the body in the same ways. Still, there is some research providing evidence that infrared sauna bathing may support the health and wellness of some individuals.
1. May Support Heart Health
One of the reasons why infrared saunas and dry-heat saunas may promote well-being is how each influences your circulation. “The therapy may lead to increased nitric oxide production, which dilates blood vessels and can improve blood flow and circulation,” says Melinda Ring, MD, the executive director of the Osher Center for Integrative Health at Northwestern University in Chicago.
2. Can Improve Sleep

3. Might Accelerate Exercise Recovery
4. Could Induce Relaxation
Think about the last time that you felt really warm and relaxed. People who use infrared saunas regularly are quite familiar with that soothing sensation. Sitting in a warm, quiet chamber is inherently relaxing for most people.
“When we calm our nervous system by doing something relaxing, our body responds in a way that reduces stress hormones like cortisol and produces feel-good hormones like serotonin and dopamine,” says Simms. What’s more, the heat improves circulation, which can give you a sense of vigor and energy when you’re done.
5. Seems to Reduce Chronic Pain
Is an Infrared Sauna Session Worthwhile?
While more research is needed, infrared sauna therapy can be a nice way to decrease stress and improve recovery from exercise, and the wellness practice may have some positive effect on pain reduction and heart function. If you have an existing health condition, such as cardiovascular disease, you may still be able to use an infrared sauna, but talk to your primary care provider about what is safe for you.
Likewise, if you’re pregnant, the American Pregnancy Association recommends avoiding saunas because heating your body to a high temperature may be harmful for you and your baby. It’s always best to talk to your primary care provider or ob-gyn for personalized health advice.
The Takeaway
- Infrared saunas use infrared light (which is on the invisible light spectrum) to warm up your body and offer potential health benefits.
- Research suggests that an infrared sauna can support heart health, improve sleep, boost muscle recovery, help you feel relaxed, and reduce chronic pain.
- While infrared saunas are safe, you should talk to your healthcare provider about whether they’re right for you, especially if you have an underlying condition or are pregnant.
- Kunutsor SK et al. Does the Combination of Finnish Sauna Bathing and Other Lifestyle Factors Confer Additional Health Benefits? A Review of the Evidence. Mayo Clinic Proceedings. June 2023.
- Källström M et al. Effects of sauna bath on heart failure: A systematic review and meta‐analysis. Clinical Cardiology. November 21, 2018.
- Hussain JN et al. A Hot Topic for Health: Results of the Global Sauna Survey. Elsevier. June 2019.
- Ahokas EK et al. A post-exercise infrared sauna session improves recovery of neuromuscular performance and muscle soreness after resistance exercise training. Biology of Sport. September 15, 2022.
- Tsagkaris C et al. Infrared Radiation in the Management of Musculoskeletal Conditions and Chronic Pain: A Systematic Review. European Journal of Investigation in Health, Psychology, and Education. March 14, 2022.

Grant Chu, MD, MS, MBA, FACP
Medical Reviewer
Grant Chu, MD, is an associate clinical professor at the David Geffen School of Medicine at UCLA. Dr. Chu is also associate director of inpatient East-West consult services at the UCLA Health hospitals.
He's board-certified in internal medicine by the American Board of Internal Medicine and is a diplomate of the National Certification Board for Acupuncture and Herbal Medicine (formerly the National Certification Commission for Acupuncture and Oriental Medicine).
He received a bachelor's degree in neuroscience from Brown University, where he also earned his medical degree. He has a master's in acupuncture and oriental medicine from South Baylo University and a master's in business administration from the University of Illinois at Urbana-Champaign.
He completed his residency in internal medicine at the University of California in Los Angeles and a fellowship at the Center for East-West Medicine at UCLA. He has held academic appointments at the University of California in Irvine and the University of Queensland in Australia.

Jessica Migala
Author
Jessica Migala is a freelance writer with over 15 years of experience, specializing in health, nutrition, fitness, and beauty. She has written extensively about vision care, diabetes, dermatology, gastrointestinal health, cardiovascular health, cancer, pregnancy, and gynecology. She was previously an assistant editor at Prevention where she wrote monthly science-based beauty news items and feature stories.
She has contributed to more than 40 print and digital publications, including Cosmopolitan, O:The Oprah Magazine, Real Simple, Woman’s Day, Women’s Health, Fitness, Family Circle, Health, Prevention, Self, VICE, and more. Migala lives in the Chicago suburbs with her husband, two young boys, rescue beagle, and 15 fish. When not reporting, she likes running, bike rides, and a glass of wine (in moderation, of course).