The animals showed changes in both slow wave and rapid eye movement sleep.

Scientists previously thought cortical neurons remained silent during delta waves, but new evidence from rats shows some cells fire in a pattern reflective of memorizing a task.

“Short sleeper” mice engineered to have the same sequence in the gene sleep less but show the same performance on memory tests as animals that sleep a normal amount.

Changes in brain waves while snoozing correlate with accumulation of tau and amyloid-β, suggesting that the neural activity disruptions could clue doctors in to early development of the disease.

He was involved in the first identification and classification of sleep disorders and outlined protocols for the diagnosis and treatment of sleep apnea.

An unusual experiment suggests that interrupted REM sleep can interfere with the amygdala’s ability to process emotional memories overnight—in this case, the distressing memories of listening to oneself sing out of tune.

Neurons can only efficiently fix genetic injuries when the animals are asleep.

Some individuals sleep just minutes a day. And keeping flies awake does not have untoward effects on longevity.

When people prefer to go to bed is linked to hundreds of variations in their genes.