Figure 1

![Figure 1: Actigraphy or sleep diary data from a patient with non-24-hour sleep-wake disorder, showing irregular sleep patterns before vitamin D supplementation.](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10149836/bin/fneur-14-1141835-g0001.jpg)

> Source: Richard Friedrich Radlberger et al. "Vitamin D deficiency promoting non-24 h sleep-wake disorder: a case report.." *Frontiers in neurology*, 2023. PMID: [37139061](https://pubmed.ncbi.nlm.nih.gov/37139061/)

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  <img src="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10149836/bin/fneur-14-1141835-g0001.jpg" alt="Actigraphy or sleep diary data from a patient with non-24-hour sleep-wake disorder, showing irregular sleep patterns before vitamin D supplementation." />
  <figcaption>Figure 1. Actigraphy or sleep diary data from a patient with non-24-hour sleep-wake disorder, showing irregular sleep patterns before vitamin D supplementation.<br>  Source: Richard Friedrich Radlberger et al. "Vitamin D deficiency promoting non-24 h sleep-wake disorder: a case report.." <em>Frontiers in neurology</em>, 2023. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/37139061/">37139061</a></figcaption>
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