tag:blogger.com,1999:blog-60473245908655801452011-04-21T20:26:42.746-07:00TV for PCnoreply@blogger.comBlogger11100tag:blogger.com,1999:blog-6047324590865580145.post-72100485036263380222009-01-14T04:27:00.000-08:002009-01-14T04:28:36.585-08:00<p>A <b>drug</b>, broadly speaking, is any chemical substance that, when absorbed into the body of a living organism, alters normal bodily function.<sup id="cite_ref-4" class="reference"><a href="http://en.wikipedia.org/wiki/Drugs#cite_note-4" title=""><span>[</span>5<span>]</span></a></sup> There is no single, precise definition, as there are different meanings in <a href="http://en.wikipedia.org/wiki/Medicine" title="Medicine">medicine</a>, <a href="http://en.wikipedia.org/wiki/Government_regulation" title="Government regulation" class="mw-redirect">government regulations</a>, and colloquial usage.<sup id="cite_ref-diccom_5-0" class="reference"><a href="http://en.wikipedia.org/wiki/Drugs#cite_note-diccom-5" title=""><span>[</span>6<span>]</span></a></sup></p> <p>In <a href="http://en.wikipedia.org/wiki/Pharmacology" title="Pharmacology">pharmacology</a>, <i><a href="http://en.wikipedia.org/wiki/Dictionary.com" title="Dictionary.com" class="mw-redirect">Dictionary.com</a></i> defines a drug as "a <a href="http://en.wikipedia.org/wiki/Chemical" title="Chemical" class="mw-redirect">chemical</a> substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being."<sup id="cite_ref-diccom_5-1" class="reference"><a href="http://en.wikipedia.org/wiki/Drugs#cite_note-diccom-5" title=""><span>[</span>6<span>]</span></a></sup> Drugs may be prescribed for a limited duration, or on a regular basis for <a href="http://en.wikipedia.org/wiki/Chronic_%28medicine%29" title="Chronic (medicine)">chronic disorders</a>.<sup id="cite_ref-ahsci_6-0" class="reference"><a href="http://en.wikipedia.org/wiki/Drugs#cite_note-ahsci-6" title=""><span>[</span>7<span>]</span></a></sup></p> <a href="http://en.wikipedia.org/wiki/Recreational_drug_use" title="Recreational drug use">Recreational drugs</a> are chemical substances that affect the <a href="http://en.wikipedia.org/wiki/Central_nervous_system" title="Central nervous system">central nervous system</a>, such as <a href="http://en.wikipedia.org/wiki/Opioid" title="Opioid">opioids</a> or <a href="http://en.wikipedia.org/wiki/Hallucinogen" title="Hallucinogen" class="mw-redirect">hallucinogens</a>.<sup id="cite_ref-ahsci_6-1" class="reference"><a href="http://en.wikipedia.org/wiki/Drugs#cite_note-ahsci-6" title=""><span>[</span>7<span>]</span></a></sup> They may be used for perceived beneficial effects on <a href="http://en.wikipedia.org/wiki/Perception" title="Perception">perception</a>, <a href="http://en.wikipedia.org/wiki/Consciousness" title="Consciousness">consciousness</a>, <a href="http://en.wikipedia.org/wiki/Personality_psychology" title="Personality psychology">personality</a>, and <a href="http://en.wikipedia.org/wiki/Behavior" title="Behavior">behavior</a>.<sup id="cite_ref-ahsci_6-2" class="reference"><a href="http://en.wikipedia.org/wiki/Drugs#cite_note-ahsci-6" title=""><span>[</span>7<span>]</span></a></sup><sup id="cite_ref-mwmed_7-0" class="reference"><a href="http://en.wikipedia.org/wiki/Drugs#cite_note-mwmed-7" title=""><span>[</span>8<span>]</span></a></sup> Some drugs can cause <a href="http://en.wikipedia.org/wiki/Drug_addiction" title="Drug addiction">addiction</a> and habituation<div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/6047324590865580145-7210048503626338022?l=stpdrugs.blogspot.com' alt='' /></div>TV for PCnoreply@blogger.com0