Saunas have gained tremendous popularity recently, celebrated for their benefits in exercise recovery and promoting longevity. The warmth envelops the body, triggering a delightful array of positive effects such as lowering blood pressure and reducing inflammation. However, access to saunas can be a challenge for many.

Happily, researchers from the University of Oregon have come to the rescue! They explored the benefits of a cozy soak in a hot bath, which is a more accessible option for many of us. Their findings, published in the American Journal of Physiology, bring great news for those without sauna access, as this study is the first to compare various heat therapies side by side.

Lead author Jessica Atencio, a dedicated doctoral student in Professor Christopher Minson’s lab, expressed excitement about the research. “We compared the most commonly utilized modalities of passive heating as they’re used in everyday life and studied in scientific research,” she shared.

While much has been studied about sauna bathing—particularly by renowned Finnish cardiologist Dr. Jari Laukkanen, whose extensive research has highlighted its popularity in Finland—the Oregon study sheds new light on hot tub bathing.

In their research, the team monitored key health metrics such as body temperature, blood pressure, heart rate, and immune cell populations. They gathered data before, during, and after participants enjoyed a hot soak, dry heat, or far-infrared saunas. This included 20 young, active individuals, aged 20 to 28, allowing researchers to pinpoint the physiological responses to each method.

Atencio noted the remarkable impact of hot water immersion: “We saw that hot water immersion was the most impactful in increasing core body temperature, which is the main stimulus for these subsequent responses.” This increase in body temperature enhances blood flow, which is excellent for vascular health.

Interestingly, the study revealed that only hot-water immersion led to significant changes in inflammatory markers, showcasing the unique benefits of soaking in warm water. Atencio explained, “Hot water immersion gives you the most robust changes in core temperature because you can’t effectively dissipate heat as you can if you have contact with the air and you’re sweating to cool the body.”

With over two decades of experience in studying heat therapies, Minson has explored how heat affects various factors, including age and exercise. He expressed confidence in the health benefits of heat therapy, stating, “There’s no doubt in my mind that if people are willing to do some heat therapy, it’s going to align with improved health, as long as it’s done in moderation.”

Dr. Laukkanen’s research supports the idea that longer sauna sessions yield the best results, and both saunas and hot tubs can mimic some exercise benefits by raising heart rates. Notably, soaking in a tub can create these effects more efficiently and quickly.

Minson also highlighted that for those who may find regular exercise challenging, heat therapy can serve as a wonderful alternative, offering some of the advantages of aerobic exercise, though he encourages regular exercise for the best outcomes.

As more studies reveal the wonderful health benefits of soaking in warmth, it’s a perfect time to spread the word. Embrace the joy of relaxation and consider sharing this enlightening study with friends and loved ones. After all, who wouldn’t want to enjoy the simple pleasure of a soothing bath?