Turning a computer off or putting it to sleep may be a matter of personal preference or habit. It's faster to close a laptop's lid or have a desktop enter sleep than shutting down either type of PC.

Researchers at the Yong Loo Lin School of Medicine, National University of Singapore (NUS Medicine), have demonstrated that caffeine can restore social memory impaired by sleep deprivation by ...

Long-term use of benzodiazepines and Z-drugs may help older adults fall asleep, but new research shows they alter sleep architecture and brain activity in ways that could undermine memory and next-day ...