For quite some time now, scientists have been aware that there is a link between sleep deprivation and intrusive thoughts. The big question, however, is why that's the case.
According to a new study, the answer has to do with a part of the brain called the right dorsolateral prefrontal cortex. This is the part of the brain that is responsible for suppressing memories, and when it slacks off we tend to suffer from more intrusive thoughts.
Curious? Check out this gallery to find out more.