Gorman, Christine, <br/><br/>
Why We Sleep. 
Christine Gorman. 
 -  Time,  2004. 
 - SIRS Enduring Issues 2006.  Article 25,  Health,  1522-323X; .
<br/><br/> Articles Contained in SIRS Enduring Issues 2006.  Originally Published: Why We Sleep, Dec. 20, 2004; pp. 46+. 
<br/><br/> "All through the animal kingdom, sleep ranks right up there with food, water and sexual intercourse for the survival of the species. Everybody does it, from fruit flies to Homo sapiens. Yet despite its clear necessity and lots of investigation, scientists still don't know precisely what sleep is for." (TIME) This article discusses the different stages of sleep, sleep disorders, sleeping habits and different theories about why we sleep. It also includes sidebars on animal sleeping habits, sleep apnea and caffeine. 
<br/><br/><label>ISSN: </label>1522-323X; 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Caffeine<br/>Learning<br/>Memory<br/>Sleep--Research<br/>Sleep--Stages<br/>Sleep apnea syndromes<br/>Sleep deprivation<br/>Sleep disorders<br/>Sleep therapy<br/>Sleep-wake cycle<br/>Wakefulness
<br/><br/><label>LC Class. No.: </label>AC1.S5 
<br/><br/><label>Dewey Class. No.: </label>050