Study: Longtime Marijuana Smokers Lack Motivation, Reward-Seeking Behavior
July 4, 2013 7:11 PM
WASHINGTON (CBS DC) – A new study finds that longtime marijuana use lowers motivation and reward-seeking behavior as the brain produces less dopamine.
In a small sample test, researchers in the United Kingdom scanned the brains of 19 long-term marijuana smokers along with 19 nonusers of the same age and sex, measuring the distribution of chemicals throughout the brain via positron emission tomography.
Marijuana smokers were found to produce less of the “feel good” chemical dopamine than their counterparts over time.
Well, you can’t blame them… they have a MEDICAL condition.
…sometimes MEDICINES have side effects.