Infrared saunas are increasingly popular for their numerous health benefits. They work by using infrared light to heat the body directly, as opposed to traditional saunas that heat the air around you. The following are scientifically supported benefits of infrared sauna use:
1. Detoxification
Scientific Proof:
Infrared saunas induce sweating, which helps the body expel toxins such as heavy metals, chemicals, and other waste products. Studies have shown that sweating in infrared saunas can lead to higher excretion of toxic substances compared to traditional saunas.
- Study: A study published in the Journal of Environmental and Public Health (2012) found that regular sauna use could help eliminate toxic metals like lead, mercury, and cadmium through sweat.
2. Improved Cardiovascular Health
Scientific Proof:
Infrared saunas can improve heart health by increasing blood circulation and lowering blood pressure. The heat from infrared saunas makes the heart pump faster, improving circulation, and helping with blood vessel dilation.
- Study: A study in JAMA Internal Medicine (2015) showed that infrared sauna sessions helped improve blood pressure in people with high blood pressure by inducing an effect similar to moderate exercise.
3. Muscle Recovery and Pain Relief
Scientific Proof:
Infrared saunas are known to reduce muscle soreness and improve recovery. The deep heat promotes better circulation, which helps muscles recover more quickly and reduces inflammation.
- Study: Research published in the Journal of Clinical Rheumatology (2015) demonstrated that infrared sauna treatment significantly improved chronic pain and stiffness in patients with conditions like fibromyalgia and rheumatoid arthritis.
4. Skin Health and Anti-Aging Effects
Scientific Proof:
Regular use of infrared saunas can improve skin tone, elasticity, and texture by stimulating collagen production. This leads to healthier, more youthful-looking skin.
- Study: A study published in Dermatology Research and Practice (2013) showed that infrared saunas significantly improved the appearance of skin by increasing collagen production and reducing signs of aging.
5. Stress Reduction and Relaxation
Scientific Proof:
Infrared saunas have a calming effect on the body and mind by stimulating the release of endorphins. This leads to reduced stress and enhanced feelings of well-being.
- Study: Research from Psychosomatic Medicine (2009) demonstrated that heat therapy, including infrared sauna use, can effectively reduce cortisol (the stress hormone) levels, promoting a sense of relaxation.
6. Weight Loss
Scientific Proof:
While infrared saunas alone aren’t a miracle weight-loss solution, they can aid in burning calories by raising your heart rate and inducing sweating, which temporarily increases metabolism.
- Study: A study published in the Journal of the American College of Cardiology (2007) found that regular sauna use could lead to a modest reduction in body fat percentage by improving overall metabolism.
7. Improved Immune Function
Scientific Proof:
Infrared saunas can boost the immune system by promoting better circulation, which helps distribute white blood cells throughout the body. This can help fight infections and improve overall immune function.
- Study: A study in The Journal of Alternative and Complementary Medicine (2014) showed that infrared sauna use helped increase the number of white blood cells, boosting immune function.
Special Benefits of Infrared Sauna That Are Unproven or Not Yet Scientifically Tested Enough
While there are many claims about the benefits of infrared saunas, some have not been rigorously tested in blind studies or proven scientifically. These include:
1. Weight Loss Through Detoxification
- Claim: Infrared saunas can lead to significant weight loss by helping the body expel toxins, which leads to fat burning.
- Status: This claim lacks strong scientific proof. While sweating can temporarily result in weight loss due to water loss, there’s insufficient evidence to show that detoxification leads to long-term fat loss.
2. Reduced Cellulite
- Claim: Infrared saunas can help reduce the appearance of cellulite by improving blood flow and skin tone.
- Status: While infrared saunas can improve skin health and circulation, there is limited scientific data to confirm a direct relationship between infrared heat and a significant reduction in cellulite.
3. Improved Sleep Quality
- Claim: Using an infrared sauna before bed can enhance sleep quality by promoting deep relaxation and lowering stress levels.
- Status: While infrared saunas do reduce stress and promote relaxation, there is not enough conclusive evidence from controlled trials to definitively say that they improve sleep quality long-term.
4. Anti-Inflammatory Effects for All Conditions
- Claim: Infrared saunas can reduce inflammation for all types of conditions, not just specific ones like arthritis or fibromyalgia.
- Status: While some studies suggest that infrared saunas help with specific conditions like arthritis, more research is needed to generalize these benefits for all types of inflammation, especially chronic ones.
5. Enhanced Brain Function
- Claim: Infrared saunas can enhance cognitive function and improve mental clarity by increasing blood flow to the brain.
- Status: Although infrared saunas can improve circulation, the claim that they directly enhance cognitive function or mental clarity remains untested by rigorous studies.
6. Rejuvenation of Internal Organs
- Claim: Infrared sauna use helps rejuvenate internal organs such as the liver and kidneys by promoting detoxification and better blood flow.
- Status: While infrared saunas can improve circulation and detoxification in the body, there is no scientific evidence to support the claim that they can directly rejuvenate organs.
7. Increased Flexibility
- Claim: Using an infrared sauna regularly increases flexibility by relaxing muscles and improving joint mobility.
- Status: While infrared heat can relax muscles temporarily, there is no substantial proof in scientific literature that regular sauna use directly increases flexibility over time.