They found that men who used saunas an average of four to seven times per week were 66 percent less likely to develop dementia and 65 percent less likely to develop Alzheimer's disease. In comparison, men who used saunas only once a week were 22 percent less likely to develop dementia and 20 percent less likely to develop Alzheimer's than men who didn't use saunas at all. The researchers reached these conclusions after controlling for risk factors such as age, alcohol consumption, body mass index, systolic blood pressure, smoking, diabetes, previous heart attack, resting heart rate, and LDL cholesterol.
Study leader Jari Antero Laukkanen said the findings were surprisingly strong. The researchers wrote that taking saunas "may be a recommendable intervention" to prevent dementia and Alzheimer's disease in healthy adults but noted that more studies are needed to see if the results hold true for women and other patient populations.
Comment: One thing to consider for those prone to kidney stones - oxalates are NOT your friend! Also, optimizing your magnesium levels will help to prevent formation of the stones and avoiding too much sugar. See: