In adolescents and young adults, delayed sleep-wake phase disorder (DSWPD) may be associated with attention-deficit/hyperactivity disorder (ADHD) and restless legs ...

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 ...

Melatonin, an endogenously produced indoleamine, plays a central role in synchronising the sleep–wake cycle in children. Its secretion by the pineal gland under dim-light conditions facilitates the ...

People with a particularly bad sleep habit may be showing signs of Alzheimer's disease, a recent study suggests. Those who take a significantly longer time to enter the dream phase of sleep, known as ...

We conducted an iterative literature search to compile peer-reviewed structural neuroimaging studies considering sleep disorders published through December 2025. In the first iteration, we identified ...