Sauna use has long historical roots across cultures, and modern interest is increasing in both traditional and infrared forms. Sauna heat causes sweating and triggers body responses similar to light-to-moderate aerobic exercise, including increased heart rate, widened blood vessels, and improved circulation. As the body shifts toward cooling, it can activate the parasympathetic nervous system, supporting a more relaxed state. Regular sauna use is associated with improved cardiovascular health, greater relaxation, and better sleep. Sauna benefits can be considered as acute effects after a session and chronic adaptations over time, with additional interest in muscle recovery and overall well-being.
"Your body's response to sauna heat is similar to its response to a light-to-moderate aerobic workout. "Your heart rate increases, blood vessels widen, and circulation improves while your body activates sweating to cool itself down," she shared. As with exercise, these physical processes help support blood flow and temperature regulation. Your body's shift towards a cooling response can help you access your parasympathetic nervous system (known as the "rest and digest" response, in contrast to the "fight or flight" response), causing an overall shift into a more relaxed state."
"The most evidence-backed benefits of regular sauna use are improved cardiovascular health, greater relaxation, and better sleep. People are also starting to turn to saunas for muscle recovery and overall well-being. It may be helpful to think about sauna benefits in two buckets, suggested Reed: acute effects and chronic adaptations. "After one session""
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