Brains Scans Reveal How People with Insomnia May Be Wired Differently

To sleep, perchance to dream … and to keep your brain working: Scientists have long known about the importance of getting a good night's sleep to improve memory, learning and mental health. But the underlying cause of primary insomnia — a chronic inability to sleep soundly that's not associated with the use of stimulants, or medical disorders such as depression — has eluded researchers. Now, a small study comparing healthy participants to patients who have primary insomnia has