During sleep, some neurons not only replay the recent past but also anticipate future experience, research in rats shows.

"Disrupted sleep may acutely impair rational thought, which can drive impulsive behaviors in vulnerable individuals."

We now have the technology and knowledge to carry out real-time dream experiments with sleeping participants.

A study links sleep apnea during REM sleep to verbal memory decline in older adults at risk for Alzheimer's.

New research suggests that "dreaming after an emotional experience might help us feel better in the morning."

Sleep habits can be improved by making shifts in both daytime and evening routines.

A new study may pave the way for new approaches to treating sleep-related disorders, researchers say.

People who work a job with nonstandard hours are more likely to report sleep issues, poor health, and depression symptoms by age 50.