Can exercise help reduce methamphetamine use?

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The abuse of amphetamine type psychomotor stimulants remains a critical legal and public health problem in the US. In California, 27% of substance abuse treatment admissions are for amphetamines; high treatment-admission rates for amphetamines are also reported for other Western States such as Idaho (25%), Nevada (25%), Arizona (18%), Oregon (16%) and Washington (14%). Additional data show that 36% of the people arrested in San Diego CA, and 23% of men arrested in Portland OR, had methamphetamine in their system upon arrest. A 2009 study by the RAND Corporation estimated the total US costs for methamphetamine at $23.4 billion.Researchers from The Scripps Research Institute (TSRI) have found that physical exercise may be a useful technique to reduce methamphetamine use. Drs. Shawn M. Aarde and Michael A. Taffe used a preclinical model in which male rats are trained to press a lever to obtain intravenous infusions of methamphetamine. Prior work had shown that an extended interval (6 weeks) of voluntary activity on a running wheel could reduce cocaine self-administration in laboratory rats. The investigators now report that running wheel access in only the 22 hours prior to the test session is sufficient to significantly reduce the amount of methamphetamine self-administered. …
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