Hampton Sides profiles several scientists who are taking a serious look at marijuana through advanced research.
The bill directs state health authorities to set new guidelines for doctors who recommend pot for "severe pain."
Under the policy, doctors who write more than 3,500 recommendations for pot in a year will be referred to the Heath Board for discipline.
Researchers at Children's Hospital Colorado are looking into the usefulness of medical marijuana as relief for patients and families of children with pediatric brain tumors.
The state is preparing to give away millions of dollars in grants for medical marijuana research, including to study whether marijuana helps ease the symptoms of psychological trauma in veterans.
While marijuana may not be hard to find, getting the first seeds for medical operations often involves either descending into the underground market or crossing state lines.
Sales of recreational marijuana in Colorado dropped for the first time in May after rising every month since stores opened in January.
CNN’s Dr. Sanjay Gupta made the treatment -- called “Charlotte’s Web" -- famous in his film “Weed.” But Colorado’s top public health doctor questions its safety.
Proportion of deadly accidents in which the driver tested positive for marijuana doubled between 1994 and 2011.