Not an interventional RCT. This belongs to the useless pile of Vit D observation... | Hacker News

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AlawamiAZ 29 days ago | parent | context | favorite | on: Vit D assoc w better cognition in those w sleep di...

Not an interventional RCT. This belongs to the useless pile of Vit D observational studies.

dlcarrier 29 days ago [–]

Check out interventional RCTs for near-infrared light exposure. They're showing a lot more promise than for ultraviolet light exposure or vitamin D supplementation.

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