>the documented 3%+ reduction in CVD is more than enough to outweigh it. People with high sun exposure have lower CVD mortality; this does not in any meaningfu

>the documented 3%+ reduction in CVD is more than enough to outweigh it. People with high sun exposure have lower CVD mortality; this does not in any meaningful way suggest that sun exposure reduces CVD mortality. To quote from your linked paper: "we cannot exclude the possibility that a bias exists between a healthy lifestyle and high sun exposure habits." It is notoriously difficult to control for confounding variables in observational studies of this sort and the authors have provided nowhere near enough information in their paper for me to have any confidence in their adjustment. I think anyone reading this comment can easily think of a multitude of reasons why people who get less sun exposure might have poor health habits, or why people in poor health might get less sun exposure.