Chronic pain is the main reason for using marijuana for medical purposes

DOSSIER – In this archival photo of October 2, 2018, an office worker is looking for a container of marijuana pimples for a client of Utopia Gardens, a medical marijuana dispensary in Detroit. Chronic pain is the reason most people use to enroll in state programs for medical cannabis. A study published on Monday, February 4, 2019 in the journal Health Affairs examines the data available in states authorizing marijuana for medical purposes. (AP Photo / Carlos Osorio, File)