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A new rodent study suggests that a key ingredient in “bath salts” called mephedrone has effects on the brain’s reward circuits that are comparable to similar doses of cocaine. The study offers evidence that mephedrone has the potential for abuse and addiction, the researchers say.

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Addiction experts are looking at exercise as a potential non-drug treatment for various types of substance abuse. One study at Baylor College of Medicine in Houston is examining whether exercise can treat people who are dependent on both cocaine and nicotine.

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The increase in prescription drug abuse in the United States is forcing the government to re-examine its emphasis on trying to stop shipments of illegal drugs into the country, The New York Times reports.

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A decreased interest in food is associated with a greater interest in novelty-seeking behavior and cocaine use, a mouse study suggests.

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The Supreme Court ruled on Thursday that recent changes to penalties for crimes that involve crack cocaine, which make sentences more lenient, can be applied retroactively.

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Police in rural and suburban areas around the country are reporting finding drugs, money and guns linked to Mexican drug cartels, CNN reports.

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A new government report suggests that treating drug use as a public health issue could lead to reduced crime rates. The annual report by the White House Office of National Drug Control Policy finds illegal drugs play a central role in criminal acts.

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Use of drugs, particularly cocaine and methamphetamine, is on the decline in the United States, according to U.S. National Drug Control Policy Director R. Gil Kerlikowske. He spoke this week at the Inter-American Drug Abuse Control Commission.

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Chronic cocaine use may accelerate aging of the brain, a new study suggests. The study found people with cocaine dependence have greater levels of age-related loss of nerve tissue in the brain called gray matter.

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A study of rats suggests a link between binge eating and the development of other addictive behaviors.

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