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 ...

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 ...

Schematic representation of sleep-microbiome interactions through the microbiota-gut-brain axis. Signals originating from the gut microbiome influence the sleep-wake cycle by modulating the flip-flop ...

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: ...