marijuana brain study

Pot smokers say marijuana is a mind-expanding drug, but a new study conducted at The University of Texas at Dallas links
A study claiming that marijuana has negative effects on the brains of casual users made waves earlier this month. But at
Kathleen Miles, HuffPost Los Angeles assistant editor, talks with HuffPost Live hosts Jacob Soboroff and Alyona Minkovski about a new study showing that teen marijuana use is less harmful than alcohol use.
However, the level of marijuana use -- up to nine times a week during the 18 months -- was not linked to a change in brain