ANN ARBOR, Mich. – A new study by the University of Michigan claims that older Michiganders use cannabis products more than older adults in other states. The study, which surveyed about 4,100 people 50 and older, found that 27% of Michiganders in their 50s used a cannabis product containing THC in the past year. The average rate of adults in their 50s who used cannabis in the last year from other states is only 21%.