Journal List Res Psychother v.24(2); 2021 Aug 12 PMC8451217 As a library, NLM provides access to scientific literature. Inclusion in an NLM database does not imply endorsement of, or agreement with, the contents by NLM or the National Institutes of Health. Learn more: PMC Disclaimer | PMC Copyright Notice Res Psychother. 2021 Aug 12; 24(2): 533. Published online 2021 Aug 24. doi:10.4081/ripppo.2021.533PMCID: PMC8451217PMID: 34568104Khalid K. Abdul-Razzak and Mohammad J. AlkhatatbehAuthor information Article notes Copyright and License information PMC DisclaimerAbstractNightmares are frightening or disturbing dreams that awaken sleepers while bad dreams are disturbing dreams that do not awaken sleepers. Both types are known to be associated with psychological symptoms including anxiety and depression. Chronic pain is often comorbid with psychological symptoms and vitamin D deficiency increases risk of chronic musculoskeletal pain (MSP), which in turn is associated with increased risk of...
