Several studies — most notably from Finland, where sauna culture is ingrained — have linked frequent sauna use with lower rates of CVD and sudden cardiac death. Regular sauna use has also been associated with lower levels of systemic inflammation and better blood-vessel function.
This may be because the body responds to a sauna as if it were moderate aerobic exercise. “The heat from a sauna dilates the blood vessels, reduces blood pressure, and improves how your cells work,” Bhojraj says. Over time, this mild cardiovascular stress can help condition the heart. (For more on the benefits of saunas, check out “The Health Benefits of Thermal Stress.”)
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