Key Takeaways
· Saunas, including infrared saunas, have been linked to reduced risk of Alzheimer's disease, dementia, and cognitive decline, with multiple long-term studies showing up to 65–67% risk reductions for frequent users.
· Regular sauna sessions may improve memory, mood, and cognitive functioning by boosting cardiovascular health, reducing inflammation, and promoting production of vital proteins like BDNF, which supports neuron survival.
· Infrared sauna health benefits go beyond relaxation—penetrating heat may lead to deeper sweats and detoxification with possible added value for brain and mood.
· The mechanism may involve enhanced blood flow, reduced oxidative stress, and neuroprotective effects, suggesting sauna use could be a useful addition to overall prevention strategies alongside diet, exercise, and mental activity.
· While promising, sauna use should complement, not replace, proven lifestyle interventions; consult a healthcare provider before adding frequent sauna routines, especially for those with chronic health issues.
Alzheimer's disease is a progressive disorder that affects the brain and causes problems with memory, thinking, and behavior. While there is no known cure for Alzheimer's disease, there are several strategies that may help prevent or delay its onset. One of these strategies is the use of saunas.
Saunas have been used for centuries for their therapeutic and medicinal properties. They are often used for relaxation and detoxification, but recent research has suggested that saunas may also have a role in preventing Alzheimer's disease.
Alzheimer's and Infrared Sauna Health Benefits
The use of saunas serves as a preventative measure for Alzheimer's disease. While there is still much research to be done on the topic, some studies have suggested that regular sauna use may help reduce the risk of developing Alzheimer's disease.
One study, published in the journal Age and Ageing, found that frequent sauna bathing was associated with a reduced risk of developing dementia and Alzheimer's disease. The study followed over 2,300 Finnish men for over 20 years and found that those who used saunas 4-7 times per week had a 66% lower risk of developing dementia compared to those who used saunas only once per week.
Another study, published in the Journal of Alzheimer's Disease, found that sauna use was associated with a reduced risk of developing cognitive impairment. The study followed over 1,600 middle-aged men and women for 20 years and found that those who used saunas 4-7 times per week had a 67% lower risk of developing cognitive impairment compared to those who used saunas only once per week.
While these studies are promising, it is important to note that they are observational in nature and do not prove causality. More research is needed to fully understand the relationship between sauna use and Alzheimer's disease.
Learn more about at-home-therapy for mental health: Red light therapy for depression
Infrared Sauna and Alzheimer’s
Infrared saunas are a type of sauna that uses infrared technology to heat the body. Unlike traditional saunas, which heat the air around you, infrared saunas use infrared radiation to penetrate the skin and heat the body directly.
This can lead to a deeper sweat and potentially greater therapeutic benefits. If you want to harness these therapeutic benefits at home, consider a full-spectrum infrared sauna for sale for multi-wavelength support.
In recent years, there has been interest in the potential of infrared saunas for preventing Alzheimer's disease. While there is still much research to be done, some studies have suggested that infrared sauna use may be beneficial for cognitive function.
One study, published in the Journal of Alzheimer's Disease, found that infrared sauna use was associated with improvements in cognitive function and mood in patients with mild cognitive impairment. The study followed 10 patients over 12 weeks and found that those who used the infrared sauna had significant improvements in cognitive function and mood compared to those who did not use the sauna.
Another study, published in the Journal of Alternative and Complementary Medicine, found that infrared sauna use was associated with improvements in cognitive function and quality of life in patients with dementia. The study followed 17 patients over 12 weeks and found that those who used the infrared sauna had significant improvements in cognitive function and quality of life compared to those who did not use the sauna.
While these studies are promising, more research is needed to fully understand the potential benefits of infrared sauna use for Alzheimer's disease.
Sauna and Dementia
Dementia is a broad term used to describe a decline in cognitive function that affects daily life. While Alzheimer's disease is the most common cause of dementia, there are other types of dementia as well. Some studies have suggested that sauna use may be beneficial for reducing the risk of dementia in general.
One study, published in the Journal of the American Geriatrics Society, found that sauna use was associated with a reduced risk of all-cause dementia.
Sauna use may also have a role in reducing the risk of vascular dementia, a type of dementia caused by reduced blood flow to the brain. One study, published in the International Journal of Epidemiology, found that frequent sauna use was associated with a reduced risk of vascular dementia.
The study followed over 1,600 Finnish men and women for 20 years and found that those who used saunas 4-7 times per week had a 65% lower risk of developing vascular dementia compared to those who used saunas only once per week.
In addition to reducing the risk of dementia, sauna use may also have benefits for cognitive function in general. One study, published in the Journal of Human Kinetics, found that sauna use was associated with improvements in cognitive function in healthy adults. The study followed 24 healthy adults over 8 weeks and found that those who used saunas twice per week had significant improvements in cognitive function compared to those who did not use saunas.
The mechanisms by which sauna use may improve cognitive function and reduce the risk of Alzheimer’s disease and dementia are not fully understood. However, one theory is that sauna use may promote the production of brain-derived neurotrophic factor (BDNF), a protein that plays a key role in the growth and survival of neurons. Studies have found that BDNF levels are reduced in patients with Alzheimer's disease and dementia, and that increasing BDNF levels may have neuroprotective effects.
Sauna use may also have other beneficial effects on the body that could contribute to a reduced risk of Alzheimer’s disease and dementia. For example, sauna use has been shown to improve cardiovascular function, reduce inflammation, and promote detoxification. All of these factors could potentially play a role in reducing the risk of Alzheimer’s disease and dementia.
Additional Benefits of Sauna Use
Sauna use has been associated with a wide range of health benefits, both physical and mental, such as:
· Improved cardiovascular function
· Reduced inflammation
· Enhanced detoxification
· Increased relaxation and reduced stress
· Improved skin health
· Pain relief
· Improved athletic performance
· Improved immune function
· Improved respiratory function
· Improved mental health
If you seek a compact solution, an infrared sauna 1-person unit delivers all the benefits while fitting easily in small spaces, perfect for daily cognitive health routines.
Learn more about infrared sauna health benefits: Top 8 benefits of an infrared sauna
Final Thoughts
It is important to note that sauna use is not a substitute for other preventative measures for Alzheimer's disease and dementia, such as a healthy diet, regular exercise, and cognitive stimulation. However, sauna use may be a useful addition to a comprehensive prevention strategy and holistic wellness plan.
For in-depth support and the best home wellness equipment, reach out to our sauna experts.
Sun Home Saunas sells the world's leading at-home saunas, including infrared saunas, traditional saunas, and infrared sauna blankets.
For consistent, safe, and optimized sessions, consider home sauna installation. It ensures professional setup, accurate temperature control, and ongoing safety. You can also enhance your daily wellness with sauna accessories such as ergonomic seating, aromatherapy diffusers, or hydration solutions for increased relaxation and session effectiveness.
FAQs
Do scientific studies confirm sauna use prevents Alzheimer’s and dementia?
Observational studies show strong associations between frequent sauna use and reduced rates of cognitive decline and dementia, but causality is not yet conclusively established. More research is needed to clarify the mechanisms.
How might the best infrared sauna for home benefit cognitive health?
Infrared saunas deliver deep, gentle heat that can stimulate BDNF production, improve blood flow, and promote detoxification, all important factors for maintaining healthy brain function, especially with aging.
Will sauna sessions alone protect against Alzheimer’s disease?
Saunas support cognitive health, but they are just one element of a holistic prevention plan that should include exercise, a balanced diet, adequate sleep, and mental stimulation.
Is there evidence for infrared sauna health benefits specifically in dementia?
Some pilot clinical trials show improvements in cognitive function and quality of life for dementia patients after infrared sauna therapy, but larger studies and clinical guidelines are still needed before firm recommendations can be made.
Can sauna use benefit other aspects of mental and physical health?
Yes, beyond cognitive protection, infrared sauna health benefits include lower inflammation, better heart health, improved mood and sleep, and reduced stress, all of which contribute to general wellbeing and healthy aging.


