Project Gutenberg 2013-10-05 Public domain in the USA. 82 Hammond, William A. (William Alexander) 1828 1900 Hammond, William Alexander Hammond, W. A. (William Alexander) Sleep and Its Derangements Produced by The Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive.) "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.) file:///public/vhost/g/gutenberg/html/files/43887/43887-h/images/cover.jpg en Sleep disorders Sleep -- Physiological aspects QP Text Browsing: Health & Medicine Browsing: Science - General 520995 521005 2024-09-18T11:35:06.643543 2023-09-19T07:26:41.917367 text/html text/html 522269 2013-10-04T19:39:54 text/html; charset=utf-8 231920 2013-10-04T19:41:20 text/html; charset=utf-8 application/zip 248211 2024-09-18T11:35:13.154540 application/epub+zip 253574 2024-09-18T11:35:07.592556 application/epub+zip 245582 2024-09-18T11:35:07.096580 application/epub+zip 403510 2024-09-18T11:35:17.658526 application/x-mobipocket-ebook 348951 2024-09-18T11:35:12.623498 application/x-mobipocket-ebook 341333 2022-09-20T04:47:52.135854 application/x-mobipocket-ebook 466611 2024-09-18T11:35:05.800563 text/plain; charset=us-ascii 467419 2013-10-04T19:39:52 text/plain; charset=utf-8 170644 2013-10-04T19:41:20 text/plain; charset=utf-8 application/zip 466229 2013-10-04T19:40:42 text/plain; charset=iso-8859-1 170306 2013-10-04T19:41:20 text/plain; charset=iso-8859-1 application/zip 466290 2013-10-04T19:40:42 text/plain; charset=us-ascii 170164 2013-10-04T19:41:20 text/plain; charset=us-ascii application/zip 21760 2024-09-18T11:35:17.815470 application/rdf+xml 10181 2024-09-18T11:35:07.212539 image/jpeg 1462 2024-09-18T11:35:07.159525 image/jpeg 238768 2024-09-18T11:35:06.692557 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia