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001			43887
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040			_aUtSlPG
041		7	_aen _2iso639-1
050		4	_aQP
100	1		_aHammond, William A. _q(William Alexander), _d1828-1900
245	1	0	_aSleep and Its Derangements
264		1	_aSalt Lake City, UT : _bProject Gutenberg, _c2013
300			_a1 online resource : _bmultiple file formats
336			_atext _btxt _2rdacontent
337			_acomputer _bc _2rdamedia
338			_aonline resource _bcr _2rdacarrier
500			_aRelease date is 2013-10-05
508			_aProduced by The Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive.)
520			_a"Sleep and Its Derangements" by William A. Hammond is a scientific publication written in the late 19th century. The book explores the complexities of sleep, discussing its necessity, causes, and the physiological phenomena associated with both sleep and various sleep disorders. It aims to shed light on the interplay between sleep and mental functions, particularly within the context of medical science during its time. The opening of the work establishes sleep as an essential biological process, emphasizing the importance of rest for the brain and nervous system for regeneration and health. Hammond provides a detailed examination of how wakefulness leads to the depletion of cerebral resources and why sleep is critical for restoring these resources. He introduces the concept of "unconscious cerebration," suggesting that even during sleep, mental activities can persist, albeit in a less effective manner. The text also foreshadows a more in-depth analysis of various sleep conditions and their implications for human health, setting the stage for the chapters that follow. (This is an automatically generated summary.)
534			_nOriginal publication data not identified
653			_aSleep disorders
653			_aSleep -- Physiological aspects
856	4	0	_uhttps://www.gutenberg.org/ebooks/43887
999			_c84726 _d84726