0451 GMT January 19, 2020
Previous research associated sleep problems with repetitive negative thoughts, but Nota and Coles wanted to investigate whether there is a link between having these negative thoughts and the time a person goes to bed at night, Medical Daily News wrote.
According to the authors, repetitive negative thinking is "defined as an abstract, preservative, negative focus on one's problems and experiences that is difficult to control."
Individuals who have such thoughts tend to worry too much about the future or the past, and they experience intrusive thoughts that can be bothersome.
Nota and Coles said individuals who have such thoughts typically suffer from generalized anxiety disorder, major depressive disorder, post-traumatic stress disorder, compulsive disorder or social anxiety disorder. Likewise, these individuals typically experience sleep problems.