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The health effects of marijuana

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River to River, hosted by Ben Kieffer

Host Ben Kieffer discusses the health effects of prolonged cannabis use, including recreational use.

On this episode of River to River, Dr. Kevin Hill, an addiction psychiatry specialist, discusses cannabinoids for medical conditions and the potential side effectsassociated with acute and chronic cannabis use. He also answers listener questions.

Then, host Ben Kieffer is joined by a high school student who speaks out on gun violence and mental health within her Des Moines community and with RJ Miller, the executive director of Greater Opportunities.


  • Dr. Kevin Hill, director of addiction psychiatry, Beth Israel Deaconess Medical Center and associate professor of psychiatry, Harvard Medical School
  • January Hudson, North High School class of 2024
  • RJ Miller, executive director of Greater Opportunities
Ben Kieffer is the host of IPR's River to River
Caitlin Troutman is a talk show producer at Iowa Public Radio
Dani Gehr is a producer for River to River and Talk of Iowa. Dani came to Iowa from her hometown in the northwest suburbs of Chicago to attend Iowa State University, where she received a bachelor’s degree in journalism, international studies and French. Before coming to IPR, Dani covered local government in Story County for the Ames Tribune and Des Moines Register.