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Withdrawal From Marijuana Leaves Users ‘Markedly Ill’

Posted on October 28th, 2014

Withdrawal-From-Marijuana-Leaves-Users-Markedly-Ill’Cannabis withdrawal is a cluster of symptoms that can appear in a physically addicted cannabis/marijuana user who stops taking the drug or substantially decreases his or her normal level of intake. In a study scheduled for publication in 2014 in the journal Drug and Alcohol Dependence, a team of German researchers sought to determine if the appearance and severity of any given person’s cannabis withdrawal symptoms are related to the amount of the active cannabis/marijuana ingredient THC present in his or her system. The researchers also included the presence of certain THC breakdown products in their investigation.

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How Does Delay Discounting Affect the Behavior of Cocaine Addicts?

Posted on October 23rd, 2014

How-Does-Delay-Discounting-Affect-the-Behavior-of-Cocaine-AddictsDelay discounting is a term psychologists and psychiatrists use to describe the human tendency to favor tangible short-term rewards over potentially greater long-term rewards. The same term applies to the human tendency to weigh obvious short-term losses against potential long-term losses. In a study slated for publication in 2014 in the journal Addictive Behaviors, researchers from the Johns Hopkins University School of Medicine examined the ways in which people addicted to cocaine calculate the short- and long-term rewards and losses associated with the consumption of this powerful stimulant drug.

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Laser Light Reveals How Cocaine Cuts Blood Flow to Brain

Posted on October 21st, 2014

Laser-Light-Reveals-How-Cocaine-Cuts-Blood-Flow-to-BrainUse of the stimulant drug cocaine is linked to increased risks for experiencing a potentially fatal change in blood vessel health known as a stroke. However, researchers have not previously known how this drug produces its damaging effects inside the brain’s blood vessels. In a study published in September 2014 in the journal Biomedical Optics Express, researchers from two U.S. institutions used laboratory testing on mice to explore the underlying mechanisms of cocaine-related blood vessel damage inside the brain. These researchers concluded that the drug produces its harmful impact by severely reducing blood flow in affected blood vessels.

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Enhancing Memory Helps in Treatment of Meth Addiction, Study Finds

Posted on October 19th, 2014

Enhancing-Memory-Helps-in-Treatment-of-Meth-Addiction-Study-FindsChronic use of the powerful stimulant drug methamphetamine is statistically linked with increased chances of developing diagnosable symptoms of depression. Chronic methamphetamine consumption can also lead to significant impairments in memory. In a study published in August 2014 in the journal Addictive Behaviors, researchers from two U.S. universities explored the interactive impact of depression symptoms and memory problems in habitual or chronic methamphetamine users. These researchers concluded that the presence of depression in habitual meth users is linked to important impairments in a particular type of memory known as metamemory.

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