The findings by Brown University scientists offer clues about how misused drugs affect healthy brains and hint at an undiscovered link between glutamate and mood.
Individuals who report having resolved a problem with cannabis use appear to have done so at younger ages than those who resolved problems with alcohol or other drugs and were less likely to use any formal sources of assistance or support, report investigators from the Recovery Research Institute at Massachusetts General Hospital.
About 3 out of 4 Americans agree that smoking cigarettes causes health problems, but public perception of the risks posed by smoking may be declining, according to a Duke Health study published in the journal Drug and Alcohol Dependence.
A study from Indiana University suggests that a drug proven safe for use in people may prevent opioid tolerance and physical dependence when used with opioid-based pain medications.
States with robust tobacco control policies and regulations, such as smoke free air laws and taxes on cigarettes, not only have fewer cigarette users but also fewer e-cigarette users, according to research from NYU School of Medicine and the NYU College of Global Public Health.
Legalizing medical marijuana has not increased recreational use of the substance among US adolescents, according to a new study. For now, there appears to be no basis for the argument that legalizing medical marijuana has increased teens' use of the drug. The researchers analyzed the results of eleven separate studies dating back to 1991. No significant changes, increases or decreases, occurred in adolescent recreational use following enactment of medical marijuana laws.
A new longitudinal study of adoptive families looked at whether symptoms of depression in adoptive fathers is also related to over-reactive parenting and behavior problems in children; the study also examined how social support networks affect parenting. It found that fathers' symptoms of depression were related to harsh, over-reactive parenting, but not to children's subsequent behavior problems.
According to a new study, screening all adults for hepatitis C (HCV) is a cost-effective way to improve clinical outcomes of HCV and identify more infected people compared to current recommendations. Using a simulation model, researchers from Boston Medical Center, Massachusetts General Hospital (MGH) and Stanford University found that this expanded screening would increase life expectancy and quality of life while remaining cost-effective.
Study results may provide mechanism to make opioids safer and more efficient.
In the months after Robin Williams committed suicide in 2014, researchers at Columbia University's Mailman School of Public Health documented a marked 10 percent increase in of suicides. Males aged 30 to 44 were particularly affected. The data also showed there was a 32 percent increase in suffocation suicides in the five months that followed Williams' death by the same method, compared to a 3 percent rise for all suicides from other methods.