Though the idea of the dumb, unproductive stoner is still steadily phasing itself out of the cannabis conversation, unfortunately, there is still a lot of conflicting information when it comes to cannabis and memory.
The average person with a working knowledge of how weed works is often led to believe that consuming it can lower your IQ and deplete your memory, regardless of how much or how often you partake. But there is evidence that shows that there is much more to consider, including the strain of weed you’re smoking, whether or not it’s THC– or CBD-dominant and the amount of time you have been consistently smoking — and that’s just for starters.
It’s also important to consider that there are different kinds of memory. For the purpose of research, most studies focus on short-term memory (also known as working memory) and long-term memory, which includes implicit (unconscious) and explicit (conscious) memory. THC, the most well-known cannabinoid in cannabis, is what can have an impact on both long-term and short-term memory.
THC vs. CBD
Most studies, like this one from JAMA Internal Medicine, offer research confirming that “long-term heavy cannabis users show impairments in memory and attention that endure beyond the period of intoxication and worsen with increasing years of regular cannabis use.” But there are others, like this one from a medical journal called the Neurobiology of Learning and Memory, that suggest that “acute exposure” to…