Sleep Science - Vitamin D is not just important for bone, immune, and heart health - but also for healthy sleep! This week we are focusing on the research looking at the
![No improvement of sleep from vitamin D supplementation: insights from a randomized controlled trial - ScienceDirect No improvement of sleep from vitamin D supplementation: insights from a randomized controlled trial - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S2590142721000094-gr1.jpg)
No improvement of sleep from vitamin D supplementation: insights from a randomized controlled trial - ScienceDirect
![Relationship between Sleep Duration, Sun Exposure, and Serum 25-Hydroxyvitamin D Status: A Cross-sectional Study | Scientific Reports Relationship between Sleep Duration, Sun Exposure, and Serum 25-Hydroxyvitamin D Status: A Cross-sectional Study | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-020-61061-8/MediaObjects/41598_2020_61061_Fig1_HTML.png)