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Review
, 55 (7), 691-6

Far-infrared Saunas for Treatment of Cardiovascular Risk Factors: Summary of Published Evidence

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Review

Far-infrared Saunas for Treatment of Cardiovascular Risk Factors: Summary of Published Evidence

Richard Beever. Can Fam Physician.

Abstract

Objective: To review the literature about the health benefits of far-infrared sauna (FIRS) use.

Quality of evidence: A search of Web of Science, EBSCO, Ovid MEDLINE, Ovid HealthSTAR, and EMBASE using the terms far-infrared and sauna, refined by limiting the search to studies of humans published in English, yielded 9 relevant papers (level I or level II evidence).

Main message: Far-infrared saunas are approved by the Canadian Standards Association and are sold to the public. The manufacturers claim numerous health benefits; however, the published evidence to substantiate these claims is limited. Four papers support the use of FIRS therapy for those with congestive heart failure and 5 papers support its use for those with coronary risk factors.

Conclusion: There is limited moderate evidence supporting FIRS efficacy in normalizing blood pressure and treating congestive heart failure; fair evidence, from a single study, supporting FIRS therapy in chronic pain; weak evidence, from a single study, supporting FIRS therapy in chronic fatigue syndrome; weak evidence, from a single study, supporting FIRS therapy for obesity; and consistent fair evidence to refute claims regarding the role of FIRSs in cholesterol reduction.

Figures

Figure 1
Figure 1
Light spectrum used in far-infrared saunas

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