Marijuana Research Bias

A major flaw in much of the medical research conducted on marijuana is that experiments focus on the user smoking marijuana and ignore other means of ingestion - eating, drinking, vaporizing. Many of the health risks associated with marijuana use can arguably be due to the general effects of smoking paired with whatever carcinogens the herbs emits. 

I get it, most marijuana users rely heavily on the smoke based route to highness, but if marijuana was reclassified under the Controlled Substance Act - or removed all together - then healthier consumption practices can become more economically feasible.