
However, dreams can be annoying, bad unpleasant and nightmares frightening, or disturbing dreams (Robert & Zadra, 2014 Scarpelli, Bartolacci, D’Atri, Gorgoni, & De Gennaro, 2019).

They are the most exciting phenomenon in psychology and neuroscience (Nir & Tononi, 2010). Further studies are required to assess if vitamin D supplementation and increasing calcium intake may improve MSP, psychological symptoms and thus prevent nightmares and bad dreams.ĭreams are one of the most delightful and puzzling aspects of sleep that occur every night in almost all individuals. Anxiety, depression and MSP were predictors for bad dreams and nightmares. Participants with normal dreams had higher vitamin D (P<0.01) and calcium intake (P<0.001) and lower anxiety and depression scores (Ps<0.001) compared to participants with bad dreams and nightmares. Chi-square analyses showed that types of dreams were associated with anxiety, depression, and MSP (Ps<0.001). Bad dreams and nightmares, vitamin D deficiency, low calcium intake, anxiety, and depression were more prevalent in cases versus controls (Ps<0.001). Binary logistic regression was used to find predictors of MSP and bad dreams and nightmares. Participants were asked about types of their dreams (normal, bad, or nightmares) during the past month. Serum vitamin D was measured and daily calcium intake was estimated. Psychological symptoms were assessed using Hospital Anxiety and Depression Scale.

The study included 191 outpatients with MSP and 191 age/gender matched healthy controls. We aimed to investigate associations between types of dreams, psychological symptoms, vitamin D, and calcium intake in individuals with MSP. 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 anxiety and depression. Both types are known to be associated with psychological symptoms including anxiety and depression. Nightmares are frightening or disturbing dreams that awaken sleepers while bad dreams are disturbing dreams that do not awaken sleepers.
