Delayed sleep phase disorder (DSPD), more often known as delayed sleep phase syndrome and also as delayed sleep–wake phase disorder, is a chronic dysregulation of a person's circadian rhythm ...

University of Alabama at Birmingham sleep specialist Justin Thomas, Ph.D., says he often gets odd reactions from patients when he tells them about one of the most effective ways to overcome insomnia: ...

Sleep disorders affect an estimated 50-70 million Americans and are linked to cardiovascular disease, cognitive impairment, metabolic dysfunction, and increased accident risk. Now, sleep experts say ...

Sleep specialist S. Justin Thomas, Ph.D., has grown accustomed to people looking at him as though he is an eight-headed monster. That’s his way of referring to the reaction he gets from patients when ...