The Nefarious Mysteries of Naps

Nefarious NapStealers and REM Sleep

Obstructive sleep apnea

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{Researchers|Scientists} and {physicians|doctors} have been perplexed by the {nefarious|atrocious|horrible|dreadful} mysteries of sleep for ages. People spend {about|approximately} 30% of their lives sleeping, but Science still cannot definitively determine the precise role of {rest|sleep} in human neurophysiology. Scientists have determined that there are {phases|states} of {varying|different} {rest|sleep} that a person cycles through throughout the night—REM (rapid eye movement) and non-REM sleep. Non-REM sleep includes different types of sleep, from light to very deep sleep. {Usually|Generally}, dreaming does not {happen|occur} during non-REM sleep, with the exception of nefarious nightmares and other napstealers, which {most likely|probably} {occur|happen} during the deepest stages of non-REM sleep. {During|In} non-REM sleep, most physical processes are greatly reduced. Therefore, the though is that during this time the brain and body are resetting themselves. However, during REM sleep the brain is very active.