For those who spent over 45 minutes per week in the sauna in total the incidence was 5.1 per 1,000 person years whilst it was 9.6 for those who spent less than 15 minutes per week in the sauna in total.
Yes, you heard that right! Apart from relaxing you, frequent sauna use is linked to a lower risk of death from cardiovascular disease (CVD) in men and women aged 50 years and over. The study has been published in the journal BMC Medicine.
Researchers from the University of Eastern Finland and the University of Jyvaskyla, Finland found that mortality from CVD among people who used a sauna four to seven times a week was 2.7 fatal CVD events per 1,000 person years, compared to 10.1 events per 1,000 person years in those who used a sauna once a week.
Person years refers to the total number of years that participants remained in the study. It is a way of measuring the number of new events in the study population in a given time period, with a lower number of events indicating a lower risk.
Professor Jari Laukkanen, the corresponding author, said: “An important finding of this research is that more regular sauna use is associated with a lower risk of death from CVD in middle-aged to elderly women as well as in men. Previous population studies were done mostly in men only.”
Professor Laukkanen continued: “There are several possible reasons why sauna use may decrease the risk of death due to CVD. Our research team has shown in previous studies that high sauna use is associated with lower blood pressure. Additionally, sauna use is known to trigger an increase in heart rate equal to that seen in low to moderate intensity physical exercise.”
The incidence (i.e. number of new cases) of CVD mortality over the study period was also found to decrease as the length of time spent in the sauna per week increased. For those who spent over 45 minutes per week in the sauna in total the incidence was 5.1 per 1,000 person years whilst it was 9.6 for those who spent less than 15 minutes per week in the sauna in total.
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