Problems that impact populations are vast and now more than ever social media is getting involved. Population health problems to focus on: Substance use  Research and share an overview of the current data on this population health problem specific to your community (I live in Chicago, IL Zip code 60634) Give an overview of any agency, organization, person, or affiliation that is addressing the population health problem. How could a community health nurse collaborate with the agency, organization, person, or affiliation address the population health problem?