Scanning the brains of sleeping toddlers, researchers found the hippocampus is activated as memories for new words are formed. The findings suggest the hippocampus plays an important role in the formation of new word memories.
For children, emotional facial expressions could reveal whether they had a good night's sleep. Researchers found emotional expressivity following sleep restrictions could also forecast later life social problems.
Performance of newly acquired motor skills can be improved by reactivating memories during sleep, a new study finds.
Researchers investigate why many of us wake in the middle of the night and dwell on our fears.
People diagnosed with mental health disorders are more likely to report poor sleep quality, including sleep disturbances and problems falling back to sleep, than the general population.
More time spent outside in natural light was associated with improved mood, better sleep quality, and ease of waking.
During the waxing period of the lunar cycle, men exhibited lower sleep efficiency and more time awake after sleep onset than during the waning period. By contrast, sleep patterns in women did not appear to change over the lunar cycle.
Reductions in reaction time, memory, and other neuropsychological problems persist for at least seven days following a ten-day period of insufficient sleep.