Current guidelines for sun exposure are unhealthy and unscientific – research (2019)
This is a very interesting theory, but also low-quality evidence. It merits further study, but hard to say that it merits any change in behavior just yet.<p>As far as I can tell, the &quot;340 000&quot; person study was finally published in 2020[1]. The study was an observational analysis of 342,000 dialysis patients. There was <i>no attempt to measure personal exposure to UV</i> (FTA: &quot;it was not feasible to determine personal exposures to UV radiation and temperature&quot;). Rather, these exposures were approximated <i>by dialysis center zip code</i>.<p>I can understand why David Fisher would say that he doesn&#x27;t question the data, but doesn&#x27;t agree with the implications.<p>1 = <a href="https:&#x2F;&#x2F;www.ahajournals.org&#x2F;doi&#x2F;full&#x2F;10.1161&#x2F;JAHA.119.013837" rel="nofollow">https:&#x2F;&#x2F;www.ahajournals.org&#x2F;doi&#x2F;full&#x2F;10.1161&#x2F;JAHA.119.013837</a>