Young adults who smoke marijuana at least once a week showed changes in the size and shape of two key brain regions, according to a new study of 20 pot smokers and 20 non-pot smokers between 18 and 25.
This is the first time recreational marijuana use has been connected to significant brain changes.
The findings, a collaboration between Northwestern University and Massachusetts General Hospital/Harvard Medical School, were published in The Journal of Neuroscience.
Ever since recreational marijuana became legal in Colorado in January, some school officials say they’re seeing more students using it. They also say heavy weed smokers generally miss more class and get lower grades.
From the Here & Now Contributors Network, Jenny Brundin of Colorado Public Radio looks at a pilot program at a high school in outside of Denver that is now offering drug treatment alongside of biology and Spanish.
Ross Reynolds talks with academic and activist Roger Roffman about his involvement with marijuana and public policy for 45 years. His latest book is "Marijuana Nation: One Man’s Chronicle of America Getting High: From Vietnam to Legalization."
Steve Scher talks with UCLA public policy professor Mark Kleiman about why Washington and Colorado are taking the wrong approach to legalizing marijuana. He says the current system could lead to increased drug abuse among minors.