Impaired awareness: Why people with multiple sclerosis continue using cannabis despite evidence to the contrary

Abstract Background: With widespread moves toward legalization of cannabis, increasing numbers of people with multiple sclerosis (pwMS) are using the drug. Emerging MS‐related data show that cannabis can cause or exacerbate cognitive dysfunction. Objective: To understand why people with MS continue using cannabis despite adverse cognitive consequences. It was hypothesized that lack of awareness, a component of metacognition, could explain this decision, in part. Method: Forty pwMS who smoked cannabis almost daily were assigned by odd–even case number selection to