Research on the effects of marijuana on memory and cognitive function is ongoing, with some studies suggesting a link between cannabis use and slower cognitive development in teens, as well as potential risks for older adults. However, the relationship between marijuana and memory loss is not entirely clear, with some findings indicating that cannabis may create false memories, while others suggest that it may have protective effects against certain cognitive disorders when combined with other substances. The impact of marijuana on working memory and brain function is also being investigated in various studies.