Dr. Ahmed A sauna session is often associated with relaxation and pleasure, but recent research suggests that the health benefits go far beyond these immediate effects.
Infrared saunas, in particular, are gaining recognition for their potential to improve a wide range of health conditions.
Here, we explore the numerous health benefits of infrared saunas based on current scientific literature.
Cardiovascular Health
One of the most significant benefits of infrared saunas is their positive impact on cardiovascular health.
Regular use of saunas has been linked to a reduced risk of cardiovascular diseases, including hypertension, stroke, and sudden cardiac death.
The physiological responses produced by sauna bathing, such as increased heart rate and improved circulation, mimic those of moderate- to high-intensity physical activity.
This can lead to improved arterial stiffness, lower blood pressure, and better lipid profiles.
Regular sauna use is linked to a reduced risk of developing high blood pressure.
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Neurocognitive Health
Infrared saunas may also benefit brain health. Studies have shown that frequent sauna use is associated with a decreased risk of neurocognitive diseases such as dementia and Alzheimer’s disease.
The mechanisms behind these benefits include improved blood flow to the brain, reduced inflammation, and enhanced detoxification processes, which collectively support better cognitive function.
Frequent sauna sessions have been shown to lower the risk of neurocognitive diseases such as dementia and Alzheimer’s disease.
Regular sauna bathing is not only a relaxing practice but is also associated with a significantly reduced risk of dementia and Alzheimer’s disease (AD), particularly in men, according to new research findings.
The study, derived from the Kuopio Ischemic Heart Disease (KIHD) study, involved over 2,300 middle-aged men in Finland who were initially healthy at the study’s baseline.
Those who used a sauna 4 to 7 times per week were found to be 66% less likely to develop dementia and 65% less likely to develop AD over a 20-year follow-up period compared to men who used a sauna only once a week.
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Sauna Bathing Habits and Stroke Risk
Sauna bathing has been associated with a reduction in stroke events.
In a study, published online on May 2 in Neurology, the researchers investigated the association between sauna bathing habits and stroke risk in a cohort of middle-aged to elderly men and women from Eastern Finland.
The participants, aged 53 to 74 years and without a known history of stroke, were part of the Finnish Kuopio Ischemic Heart Disease prospective cohort study.
The study assessed the frequency and duration of sauna sessions, as well as the temperature in the sauna room, through questionnaires.
Participants were divided into three groups based on their sauna bathing frequency: one session per week, two to three sessions per week, or four to seven sessions per week.
Over a median follow-up of 14.9 years, 155 stroke events occurred. The results showed that participants who took four to seven saunas per week had a 61% reduced risk of stroke compared to those who took one sauna per week, with a hazard ratio of 0.39 (95% confidence interval, 0.18 – 0.83).
This significant reduction in stroke risk persisted even after adjusting for various established risk factors and potential confounders such as age, sex, body mass index, smoking, blood pressure, cholesterol levels, alcohol consumption, diabetes, medication use, physical activity levels, and socioeconomic status.
Mechanisms Behind the Benefits
The researchers suggest several possible mechanisms for the observed reduction in stroke risk with frequent sauna use. These include:
Reduction in systemic blood pressure:
- Sauna bathing has been shown to lower blood pressure, which is a major risk factor for stroke.
Improved lipid profiles:
- Sauna use can positively affect circulating lipid levels, reducing the risk of atherosclerosis.
Decreased arterial stiffness and carotid intima-media thickness:
- Saunas may improve vascular health by reducing arterial stiffness and the thickness of the carotid artery walls.
Enhanced immune system function:
- Regular sauna use may boost the immune system, contributing to overall cardiovascular health.
Reduced oxidative stress:
- Saunas can lower oxidative stress, which is linked to many chronic diseases, including stroke.
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Respiratory Health
For individuals with respiratory conditions, infrared saunas can offer relief. The heat from the sauna helps to open airways, reduce congestion, and improve overall lung function.
This can be particularly beneficial for those suffering from asthma, bronchitis, and other pulmonary conditions.
Additionally, the enhanced circulation and relaxation provided by sauna use can boost the immune system, reducing the frequency and severity of respiratory infections like influenza.
Saunas can enhance respiratory function and lower the risk of lung diseases.
Pain Relief
Infrared saunas are known for their ability to alleviate various types of pain. People with chronic pain conditions such as arthritis, fibromyalgia, and headaches often find relief through regular sauna sessions.
The heat promotes muscle relaxation, reduces inflammation, and enhances blood flow to affected areas, which can significantly reduce pain and improve mobility.
Saunas can alleviate pain and improve symptoms associated with conditions like arthritis.
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Better skin health:
Sauna bathing may ameliorate skin conditions such as psoriasis and urticaria. This is particularly true for infrared Sauna baths.
Infrared sauna baths may reduce skin inflammation and promote skin healing.
Quality of Life and Longevity
Regular use of infrared saunas has been associated with an improved quality of life and increased longevity.
The cumulative effects of enhanced cardiovascular health, better respiratory function, and reduced pain contribute to an overall sense of well-being.
Studies have shown that people who use saunas frequently tend to have lower all-cause mortality rates compared to those who do not [Ref].
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Infrared Sauna for Weight Loss:
An infrared sauna bath or dry bath is considered exercise-mimetic. This means your body temperature rises, your heart beats faster, your metabolic rate is increased, and you start sweating, just as if you are exercising.
Studies have found that frequent infrared sauna baths are associated with weight loss compared to infrequent sauna bathers [Ref].
In addition, an infrared sauna bath is also associated with reduced muscle inflammation and soreness after strenuous activity. [Ref]
Safety and Considerations
While the benefits of infrared saunas are numerous, it is essential to consider safety, especially for individuals with certain health conditions.
Those with unstable angina, recent myocardial infarction, severe aortic stenosis, or uncontrolled hypertension should avoid sauna use without medical supervision.
Additionally, the rapid shift from the heat of the sauna to a cooler environment can pose risks for individuals with cardiovascular vulnerabilities.
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Conclusion
Infrared saunas offer a range of health benefits, from improved cardiovascular and neurocognitive health to enhanced respiratory function and pain relief.
While more research is needed to understand the long-term effects fully and to establish causal relationships, the current evidence suggests that regular sauna use can be a valuable addition to a healthy lifestyle.
As with any health intervention, it is important to consult with a healthcare provider, especially for individuals with pre-existing health conditions.
