Talk:Sleep dysfunction

B12 for circadian rhythm dysfunction (non-24 and delayed sleep phase disorder):

https://www.ncbi.nlm.nih.gov/pubmed/9201777 https://www.ncbi.nlm.nih.gov/pubmed/1641496 https://www.ncbi.nlm.nih.gov/pubmed/1759094 https://www.ncbi.nlm.nih.gov/pubmed/2305167 https://www.ncbi.nlm.nih.gov/pubmed/6622881