 And really just in the last few years, especially since COVID, we've been learning more and more about the health benefits of spending time in nature. So out in green spaces or blue spaces and how that improves health. And so what we wanted to do in this study was really look at the combination of the two is, is it healthier to exercise outdoors in natural spaces than it is to do it indoors? And so that's what we did. It was an expert review. So it was not a primary study, but we took all of the research that was out there,