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NIDA Notes Articles: Marijuana

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Adolescent Cigarette, Alcohol Use Declines as Marijuana Use Rises

February 2013

Fewer teens are using cigarettes, alcohol, and most illicit drugs, according to NIDA’s latest Monitoring the Future study. Troubling  trends persist in marijuana use, however, and nonmedical prescription drug use remains a concern.

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Adolescent Smoking and Drinking at Historic Lows

July 2012
Rates of adolescent cigarette smoking and alcohol drinking stood at historic lows in 2011, but marijuana use trended upward, according to the Monitoring the Future (MTF) survey.

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After Release, Jail Inmates’ Substance Use Patterns Relate to Their Choice of Friends

July 2013

When the goal is to avoid using alcohol and illicit substances after being released from jail, it’s who one’s friends are that counts most. Self-control is important because it helps a person have the right kind of friends.

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Brain Responds to Marijuana Cues in Familiar Manner

March 2011
Researchers found that the brain activity that takes place when cues trigger marijuana cravings is similar to the activity that accompanies cravings for other drugs.

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Brief Intervention Helps Adolescents Curb Substance Use

January 2013

NIDA-funded researchers have gathered evidence that brief interventions can help adolescents move away from drug use. In a clinical trial, middle and high school students markedly reduced their substance use following two 60-minute sessions that combined motivational interviewing and cognitive behavioral therapy.

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Combination Treatment Extends Marijuana Abstinence

March 2008
Describes research investigating the use of a treatment that combines vouchers and cognitive behavioral therapy as compared with the use of either treatment alone for marijuana abuse.

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Dr. Marilyn Huestis Q & A: Matching Drug Effects to Drug Concentrations

September 2013

Dr. Marilyn Huestis of NIDA’s Intramural Research Program talks about conducting research on drug effects with human subjects, developing tests to help law enforcement identify drugged drivers, and an assay to help identify children whose prenatal exposure to anti-HIV drugs may put them at risk for adverse developmental outcomes.

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Drug Abuse at Highest Level in Nearly a Decade

December 2010

Reports on 2009 data indicating a rise in drug abuse in the United States and the factors that may have contributed to this increase.

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Drugs Contribute to High Rates of Sexually Transmitted Diseases Among Juvenile Offenders

July 2011

Describe a study of newly arrested youths where researchers found correlations between the youths' prevalence of these sexually transmitted diseases and their cocaine and marijuana use.

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Early-Onset, Regular Cannabis Use Is Linked to IQ Decline

August 2013

Regular cannabis use that starts in adolescence strips away IQ, a NIDA-supported study suggests. Participants who initiated weekly cannabis use before age 18 dropped IQ points in proportion to how long they persisted in using the drug. Persistent cannabis users’ cognitive difficulties were evident to friends and family and measurable on a battery of tests.

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