Oh so you think the sativa weed is completely safe? "Cannabis use is not as benign and safe as some might think," study demonstrates that the use of this substance is associated with serious effects

by Paul Alexander

risk of all-cause ER visit or hospitalization, was significantly greater among cannabis users; weed associated with increased risk of serious adverse effects; recreational consumption is not benign


Cannabis use and risks of respiratory and all-cause morbidity and mortality: a population-based, data-linkage, cohort study

I find these reports very interesting and I want to study this more. I know there are some medicinal effects however.