Researchers concluded, “We see no evidence that liberalized cannabis policies are directly associated with increased smoking behaviors among young adults.”
The administration of oral CBD reduces cue-induced cravings and anxiety in subjects with a history of heroin use, according to clinical data published in The American Journal of Psychiatry. Commenting on the study’s findings, NORML Deputy Director Paul Armentano said, “These conclusions add to the growing body of evidence that cannabis and its constituents represent an exit away from the use or abuse of other controlled substances rather than a supposed ‘gateway.'”
In a just published “exit interview” with Rolling Stone Magazine, President Barack Obama opined that marijuana use should be treated as a public-health issue, not a criminal matter, and called the current patchwork of state and federal laws regarding the drug “untenable.”
Alcohol is typically the first substance consumed by subjects who report polydrug use later in life, according to data published in The Journal of School Health. “Alcohol is the most commonly used substance, and the majority of polysubstance using respondents consumed alcohol prior to tobacco or marijuana initiation,” they reported.
Marijuana use by adolescents is not associated with lower IQ or poorer educational performance once adjustments are made for potential confounders, specifically cigarette smoking, according to longitudinal data published online ahead of print in the Journal of Psychopharmacology. Researchers concluded, “In summary, the notion that cannabis use itself is causally related to lower IQ and poorer educational performance was not supported in this large teenage sample.”
Cannabis use is inversely associated with incidences of bladder cancer in males, according epidemiological findings published in the February issue of the journal Urology. “After adjusting for age, race or ethnicity, and body mass index, using tobacco only was associated with an increased risk of bladder cancer (hazard regression 1.52) whereas cannabis use was only associated with a 45 percent reduction in bladder cancer incidence (HR 0.55),” investigators reported.
Investigators at Emory University in Atlanta assessed marijuana smoke exposure and lung health in a large representative sample of US adults age 18 to 59. They concluded, “[The] ongoing use of marijuana is associated with increased respiratory symptoms of bronchitis without a significant functional abnormality in spirometry, and cumulative marijuana use under 20 joint-years is not associated significant effects on lung function.”