What is a potential long-term health effect of continued cannabis use?

Continued cannabis use can lead to respiratory problems primarily due to the method of consumption and the substances present in cannabis smoke. When cannabis is smoked, it produces many of the same harmful byproducts as tobacco smoke—such as tar and various irritants—that can contribute to chronic bronchitis, lung inflammation, and ultimately reduced lung function. Users who frequently smoke cannabis may experience a persistent cough, phlegm production, and wheezing, which can be exacerbated with ongoing use.

Other options do not reliably reflect established long-term health effects associated with cannabis. While some studies suggest improvements in certain mental health symptoms or cognitive abilities may occur under specific conditions or dosages, they are not universally recognized as benefits of long-term cannabis use. Instead, concerns about impaired cognitive function, especially in adolescents or individuals with pre-existing vulnerabilities, are more prevalent. Hence, respiratory issues stand out as a significant and documented potential long-term health consequence of ongoing cannabis use.