Going to bed late, and having too few hours of sleep, is a recipe for worrying and having negative thoughts, a new study suggests.
People who don't get enough sleep are more likely to be pessimistic, and have negative thought patterns. They worry excessively about the future, delve too much into the past and experience annoying intrusive thoughts, all of which are typical symptoms of anxiety, depression and obsessive-compulsive disorder.
Conversely, those who go to bed at a reasonable time and sleep well are far less likely to have negative thought patterns, say researchers from Binghamton University in the US.
The researchers surveyed around 100 students about their thoughts and sleep patterns, and discovered an association between the two. Those who slept for shorter periods, and went to bed later, were more likely to have repetitive negative thoughts, and this also included students who described themselves as 'evening' people.
(Source: Cognitive Therapy and Research, 2014; doi: 10.1007/s10608-014-9651-7)