Most users consider marijuana addiction a myth, but Colorado State University’s psychology department takes it seriously…so much so that it’s focusing on marijuana in its new master’s program on ...

For years, Washington, D.C. resident Josefa Ippolito-Shepherd, 79, fought to keep her duplex free from bothersome cannabis fumes. Her neighbor’s medical marijuana use filled her home with smoke, ...

Let me ask you a simple question. Do you believe marijuana use is harmful? You may say “no, marijuana is a 'soft' drug and doesn’t do any harm.” Or, perhaps you say “yes, because people who use ...