Does sauna benefit your heart health? Cornell-trained physician explains, shares how to do it correctly

Dr Vassily highlights the health benefits of saunas, noting that they can increase heart rate and improve cardiovascular health.
Most people think of a sauna as a wellness trend. The clinical data says it’s one of the most powerful passive longevity tools we have, according to Dr Vassily Eliopoulos, MD, board-certified in emergency medicine and a Cornell-trained physician.
In an Instagram video shared on August 1, Dr Vassily explained why sauna is actually good for longevity. He cited clinical evidence found by a Finnish cohort study that followed over 2,000 men for 20 years. According to him, the findings were striking.
Sauna benefits your heart health
Dr Vassily stated that the study found that men who use a sauna four to seven times per week had a 40% lower risk of all-cause mortality compared to the men who used it once a week. Moreover, cardiovascular death dropped by 40%, sudden cardiac death dropped by 63%, and fatal coronary disease dropped by 48%.
These are not small effects, Dr Vassily stressed. “These are the kinds of numbers you see with major pharmaceutical intervention. The mechanism makes sense,” he added.
How does it work?
According to Dr Vassily, a sauna raises your core body temperature by 1 to 2 degrees and increases your heart rate to 100 to 150 beats per minute, which is similar to the effects of moderate aerobic exercise.
It also triggers a significant cardiovascular adaptation response. “Your blood vessels dilate, cardiac output increases, and the thial function improves,” he added.
“Over time, regular sauna use measurably lowers blood pressure, reduces arterial stiffness, and improves heart rate variability. There's also data on inflammation. Some studies show that regular sauna use is associated with lower high-sensitivity CRP over time, the same inflammatory marker that I track on every patient quarterly,” Dr Vassily explained.
Cognitive protection
He added that there is also new research suggesting that sauna may support cognitive protection through heat shock protein formation, which may help to clear misfolded proteins associated with Alzheimer's.
How to do it correctly
According to Dr Vassily, the protocol that matches this research is:
- 20 minutes per session
- At least 4 sessions per week
- At around 79 to 80 degrees Celsius, which is about 175 degrees Fahrenheit
- One caveat: If you have a cardiac condition, check with your physician first.
Lastly, he added that the Finnish study used traditional dry saunas, so the data support those. Meanwhile, infrared saunas operate at lower temperatures, and the data exists but isn't as robust.
Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.
This report is based on user-generated content from social media. HT.com has not independently verified the claims and does not endorse them.
ABOUT THE AUTHORKrishna Pallavi PriyaKrishna Priya Pallavi is a journalist with over 9 years of experience, covering health, fashion, pop culture, travel, wellness, entertainment, festivals, mental health, art, decor, fitness, and sex and relationships. She is an alumna of the Indian Institute of Mass Communication (IIMC), Dhenkanal, and holds an undergraduate degree in Journalism and Mass Communication from Guru Gobind Singh Indraprastha University, Delhi. Her strong academic foundation informs her analytical and detail-oriented approach to storytelling, helping her uncover stories where none seem to exist. Before joining Hindustan Times, Pallavi worked with some of India’s leading media organisations. She spent close to three years at India Today, where she honed her newsroom skills and developed a sharp editorial sensibility. She also worked for over a year and a half at Vagabomb, ScoopWhoop’s feminist digital platform, where she explored stories through a gender-sensitive, socially aware lens. Pallavi has a deep interest in global fashion trends and international fashion seasons, and enjoys interviewing celebrities and tracking pop culture movements—interests that frequently translate into engaging, reader-friendly stories. Alongside lifestyle and entertainment, she has a keen eye for impactful health and wellness journalism, regularly interacting with doctors, designers, and digital content creators to bring nuance and credibility to her work. Born and raised in Haryana, Pallavi remains deeply connected to her ancestral roots in Odisha. Her ability to spot fresh angles brings curiosity and depth to stories she pursues. When not chasing deadlines, she enjoys spending time with her dog, planning her next vacation, reading, running new trails, and discovering new destinations.Read More
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