Breadcrumb Home Tippie News Study finds medical marijuana leads to lower insurance premiums Tuesday, February 7, 2023 Linh Ta | Axios Des Moines https://www.axios.com/local/des-moines/2023/02/07/study-medical-marijuana-lower… States with medical marijuana programs have lower insurance premiums than those that don't, according to a new University of Iowa study by Cameron Ellis examining insurance premiums.