Study links increased nightmares to early warning signs of autoimmune diseases like lupus, urging doctors to inquire about them.

A study by the University of Cambridge and King's College London suggests that an increase in nightmares could serve as an early warning sign for serious diseases, such as lupus. Researchers are urging doctors to ask about nightmares to help detect when symptoms are likely to flare up in patients earlier. The study, which surveyed 676 lupus patients and 400 clinicians, found a link between nightmares, daytime hallucinations, and the onset of autoimmune diseases.