A higher frequency and duration of sauna usage appear to be substantially associated with reduced fatal cardiovascular events in middle-aged and elderly individuals

In November 2018 researchers from Finland, UK and Austria published the results of their study to assess the association between sauna usage and cardiovascular disease mortality in 1,688 individuals (aged 53-74 years; 51% women). Information on sauna usage was assessed at the start of the study and the individuals were divided into three groups according to the number of sauna sessions undertaken per week; namely 1, 2-3, 4-7 sessions. During an average follow-up period of 15 years there were a total of 181 fatal cardiovascular events. Results showed that a higher sauna usage was strongly associated with reduced cardiovascular mortality. A further analysis revealed that a longer duration (minutes) of each sauna session was also strongly associated with reduced cardiovascular mortality.

Laukkanen T et al. Sauna bathing is associated with reduced cardiovascular mortality and improves risk prediction in men and women: a prospective cohort study. BMC Med. 2018 Nov 29;16(1):219 

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