Smoking Cannabis and Acquired Impairments in Cognition

The authors discovered several interesting things. First, all elements of both alcohol and cannabis use increase annually across the various levels of frequency of use, with the exception of daily alcohol use. Second, the effects of cannabis are considerably greater than those of alcohol. Third, there appear to be both concurrent and lagged effects of cannabis use on several cognitive domains. Thus, use of cannabis has persistent effects that are also exacerbated by continued use.