drug addiction

A molecular map of the brain’s decision-making area

Researchers at Karolinska Institutet have come one step closer toward understanding how the part of our brain that is central for decision-making and the development of addiction is organized on a molecular level. In mouse models and with methods used for mapping cell types and brain tissue, the researchers were…

Teens abusing painkillers are more likely to later use heroin

A USC study in the July 8 issue of JAMA Pediatrics shows that teens who use prescription opioids to get high are more likely to start using heroin by high school graduation. “Prescription opioids and heroin activate the brain’s pleasure circuit in similar ways,” said senior author Adam Leventhal, a professor of…

Increased risk of harm from cannabis across Europe

Cannabis resin and herbal cannabis have significantly increased in potency and in price, according to the first study to investigate changes in cannabis across Europe. The study, published today (Sunday 30 December) in the journal Addiction by researchers from the University of Bath and King’s College London, draws on data collected from…

How exercise could help fight drug addiction

The siren call of addictive drugs can be hard to resist, and returning to the environment where drugs were previously taken can make resistance that much harder. However, addicts who exercise appear to be less vulnerable to the impact of these environmental cues. Now, research with mice suggests that exercise…

Non-psychoactive cannabinoid may enable drug addiction recovery

An animal study finds that cannabidiol (CBD), a non-psychoactive chemical found in marijuana, may help reduce the risk of drug and alcohol relapse. The research, conducted by the Scripps Research Institute, was funded by the National Institute on Drug Abuse and the National Institute on Alcohol Abuse and Alcoholism, both…