Shih RA, Rodriguez A, Parast L, et al. - Researchers explored the links between the density of medical marijuana dispensaries (MMDs) around young adults' homes and marijuana use outcomes by secondary data analysis of 1,887 candidates aged 18–22 years who were surveyed online in 2016–2017 in Los Angeles County, CA, USA. According to findings, approximately 84% of participants had 10 or more MMDs within 4 miles of their houses. Living near a greater number of MMDs associated with a higher number of days used in the past month and a higher expectation of a positive impact from marijuana. In comparison with relationships with the total MMD count, living near more MMDs with storefront signage had a four-to-six-fold greater impact on the number of times used per day and positive expectancies, respectively. An unexpected link was noted amongst higher MMD density and fewer number of times used each day. Living near more MMDs had a positive relationship with the more common use of marijuana within the past month and larger expectations of marijuana's positive benefits for young adults in Los Angeles County.