Updated: Jan 2020
The epidemiological literature in the past 20 years shows that cannabis use increases the risk of accidents and can produce dependence. There are also consistent associations between regular cannabis use and poor psychosocial outcomes and mental health in adulthood, impaired respiratory function, cardiovascular disease, and residual cognitive impairment.
In Vermont, the use of marijuana on one or two days and three to nine days have both decreased since 2011, suggesting a general shift towards regular marijuana use instead of more casual use. Marijuana use has been legalized in Vermont, effective 7/1/18, which is likely to decrease perception of risk and increase use and frequency of use.