Several outlets report that a new study suggests soaking in hot water for about 30 minutes can reduce blood pressure by a similar amount to moderate exercise. The research, published in the European Journal of Applied Physiology, focuses on “passive heat therapy,” where the body is heated without active movement.
The sources explain that hot water immersion may improve vascular function by increasing blood flow and producing “shear-mediated” stimuli inside blood vessels. This is described as a mechanism that can drive beneficial changes in circulation, potentially offering an option for people who cannot exercise regularly.
At the same time, coverage across the articles stresses that the evidence is limited and should not be interpreted as hot baths being better than exercise overall. Researchers are quoted as cautioning that the findings reflect the higher thermal strain of hot water immersion, and they position the intervention as a complementary or alternative approach for those unable to exercise. The articles also note general blood pressure guidance, including lifestyle measures such as diet and regular activity.
