Click on image to view larger version.

Figure 1 Relationship between the change in percent flow-mediated dilation (%FMD) and the percent improvement in brain natriuretic peptide (BNP) concentration in the sauna-treated group. There is a positive correlation between the change in %FMD and the percent improvement in BNP concentration before and after two weeks of sauna therapy (r = 0.69, p = 0.0005).