The active compound in marijuana, tetrahydrocannabinol (THC), has shown that it not only will help prevent brain tumors from forming, but that it can also cure them. This medical wonder works by the THC inducing a process called autophagy, in which the cancerous brain cells begin to consume themselves. Rather than growing in size by feeding on other healthy brain cells, these cancer cells feed on themselves until there is nothing left. This all comes without the risky side effects provided by most synthetic drugs, meant for this purpose.
Spanish researchers at Complutense University were the first to note this phenomenon, in 2008. They began by administering THC to test subjects and noticed drastic improvements within as soon as 2 weeks of dosing.
A little over a year later, after further research had been done, two subjects with glioblastoma multiforme enrolled in an experiment, in which they would receive THC injections directly into their brain, rather than their bloodstream. Glioblastoma multiforme is a ruthless and often reoccurring tumor that rarely sees long-term survivors. After the administration of the THC into the brain, researchers noted drastically increased autophagy and reduced tumor size. Perhaps most amazingly was the fact that the patients had zero reported or noticed negative effects from the THC injections. Standard medication could have killed them or caused highly undesirable side effects.