It probably doesn't cause heart disease
Unlike cigarettes, marijuana has not been shown to increase the risk of cardiovascular disease and its complications, such as heart attacks and strokes. The report's committee said, however, that more research was needed on the subject, as there were reports of heart attacks shortly after smoking marijuana. However, it has not been proven that she was the direct cause of them.
It adversely affects the respiratory system
Regular smoking of marijuana is associated with more frequent episodes of chronic bronchitis and respiratory ailments, such as chronic cough and increased phlegm. However, these effects are reversible. Most studies show that smoking marijuana does not increase the risk of chronic obstructive pulmonary disease, asthma or worsening lung function.