Another wrinkle to the study is the route of cannabis use and how it may play a role in the link to cardiovascular disease. About 74 percent of cannabis users in the study reported smoking cannabis, which could potentially increase the risk of cardiovascular disease much the same way as tobacco cigarettes—a result of inhaling particulate matter into the lungs. It's unclear if edible cannabis products would weaken the association seen in the study.
Inhaling smoke is just flat out not good for you.