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The original was posted on /r/science by /u/AnnaMouse247 on 2024-08-07 15:15:46+00:00.

Original Title: The Evolutionary Theory of Loneliness (ETL) suggests that belonging is key to survival. In two studies (N=1,609), loneliness was linked to more and worse nightmares. Stress affected nightmare frequency in first study, while alertness and overthinking explained the links in the second, supporting ETL