As more states legalize recreational marijuana, the availability of high-potency cannabis products raises the potential for health risks—including addiction. Listen in as host William C. Moyers talks with Hazelden Betty Ford "addictionologist" Vic Vines, MD, about health implications of high-potency marijuana. Like any addictive substance, marijuana can be used by some people without major consequence. For others, dependence can develop along with mental health issues and cognitive impairment.