Researchers Reveal Science Behind Benefits of Saunas
Saunas are having a moment, and now a new study from Finland - the birthplace of the Scandinavian wellbeing trend - could explain why sweating it out is good for your health.
ScienceDaily reports that a new Finnish study demonstrates that just 30 minutes in a sauna can temporarily flood the bloodstream with additional white blood cells, potentially helping the immune system patrol the body and detect threats. The surprising response resembles the immune boost seen during exercise and may help explain some of the health benefits linked to sauna bathing.
Researchers found that half an hour in a sauna, with a quick cold shower at half time, triggered an immune response, sending white blood cells surging into the bloodstream. These cells are essential to the body’s defences, helping hunt down and fight infections. Scientists saw increases in every type of white blood cell measured.
“This kind of periodic release of white blood cells into the bloodstream is beneficial, as once they leave their storage sites, they are better able to patrol the body and respond to pathogens,” said Ilkka Heinonen, a research fellow at the University of Turku.
The researchers cautioned that their work only examined one session, so it’s unclear whether saunas bring lasting immune benefits or cut the risk of illness. The response they observed was temporary; within half an hour of a sauna session, neutrophil and lymphocyte counts had returned to normal. The cold shower also means the effects can’t be attributed to heat alone.
Ford Creates an Electric Sauna Van: Ford one-ups the camper van trend with a sauna you can take anywhere.
The Finnish Way to Enjoy a Sauna: All the secrets for a pleasant, healthy, and respectful Finnish sauna and ice-plunge experience.
