A study by researchers at Boston’s Massachusetts General Hospital and Northwestern University in Chicago performed MRI brain scans on 20 young adult “casual” marijuana users and 20 age- and sex-matched nonusers. They found that, in the users, gray matter densities in the nucleus accumbens were higher than in controls, and the right amygdala and left nucleus accumbens were shaped differently.
These findings only reflected differences between the marijuana users and controls at a single point in time.
The Society for Neuroscience (SfN), which publishes the Journal headlined “Brain changes are associated with casual marijuana use in young adults.” The study did not identify any cognitive or behavioral abnormalities in the cannabis users versus controls — it was strictly an MRI study.
Senior author Hans Breiter, MD, of Northwestern states this study raises a strong challenge to the idea that casual marijuana use isn’t associated with bad consequences The mean intakes were 3.83 days of use and 11.2 joints per week, and 1.8 smoking occasions per day .
This makes us pause and think. Are we taking too much of a risk and will it end by the damage done by the power of the cigarettes lobby.