By Stanley H. Block M.D.
Verified by Psychology Today
Blessed sleep is the balm that soothes and restores us after a long day of work and play. Sleep is largely driven by the body’s internal clock that takes cues from external elements such as sunlight and temperature; it is the body’s natural sleep-and-wake cycle over a 24-hour period.
Dreams are the stories our brains tell while we’re sleeping—they’re a collection of clips, images, feelings, and memories that involuntarily occur during the REM (rapid eye movement) stage of slumber.