Cardiovascular and Other Health Benefits of Sauna Bathing: A Review of the Evidence

Laukkanen JA, Laukkanen T, Kunutsor SK · Mayo Clinic Proceedings

Links regular Finnish sauna to lower cardiovascular and all-cause mortality and reports amelioration of conditions including arthritis, resting largely on observational data and small interventional studies.

Population

Observational studies, RCTs and non-randomized trials of Finnish sauna bathing to Feb 2018

Limitations

Narrative review by the KIHD investigators; the arthritis statements trace back to small uncontrolled trials and patient surveys, not randomized evidence.