[tkadm30 (OP)]

Well let's see G protein receptors are pathways for many diseases which is why a significant proportion of medicinal drugs use this same pathway. Hence why drug users are said to be self-medicating. Gene expression is basically the machinery to build proteins or functional RNA. Abnormal amounts of the resulting gene product (protein or RNA) are linked to various cancers. Would I wish to play this type of Russian roullette?

Actually, cannabinoids are effective anticancer agents. See this paper: http://www.sciencedirect.com/science/article/pii/S0278584615001190