Opium Articles

Sunday, November 8, 2009

Opioid

An opioid is any agent that binds to opioid receptors, found principally in the central nervous system and gastrointestinal tract. There are four broad classes of opioids: endogenous opioid peptides, produced in ...  > full story

Narcotic

A narcotic is an addictive drug that reduces pain, induces sleep and may alter mood or behaviour. In US legal context, narcotic refers to opium, opium derivatives, and their semi-synthetic or fully ...  > full story

Drug addiction

Drug addiction, or substance dependence is the compulsive use of psychoactive drugs, to the point where the user has no effective choice but to continue use. Drug addiction has two components: physical ...  > full story

Psychoactive drug

A psychoactive drug or psychotropic substance is a chemical substance that acts primarily upon the central nervous system where it alters brain function, resulting in temporary changes in perception, mood, ...  > full story
 

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Why I Hate Anchovies

An exhibit at San Francisco's Exploratorium explains the science of cooking and eating, and in particular how we taste food. Our sense of taste comes. ...  > full story

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