The interfaces between vitamin D, sleep and pain in: Journal of Endocrinology Volume 234 Issue 1 (2017)
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Relationship between Sleep Duration, Sun Exposure, and Serum 25-Hydroxyvitamin D Status: A Cross-sectional Study | Scientific Reports
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Does vitamin D help with insomnia? - Quora
Melatonin and vitamin D, two sides of the same coin, better to land on its edge to improve multiple sclerosis | PNAS
How Vitamin D Helps with Sleep
The Insomnia Epidemic: Fight It with a Strong Dose of Vitamin D – Hibernate Sleep Formula
Vitamin D Level May Affect Quality of Sleep - GrassrootsHealth
Does Vitamin D Help Sleep? Yes and See Exactly Why - YouTube
Vitamin D Deficiency and Sleep Disorders – How are they related? - Midland Healthcare
How Vitamin D Affects Your Sleep
How Vitamin D Affects Your Sleep
Does Vitamin D Help You Sleep? (2023) - Mattress Clarity
Have Trouble Sleeping? Increasing Vitamin D Can Help.
Amazon.com: Nutrition Breakthroughs Sleep Minerals II, Calcium and Magnesium Softgels for Better Sleep, with Vitamin D and Zinc, Natural Sleep Supplement for Adults and Good for All Ages, 120 Softgels : Health