Lou Gehrig's disease. In 2008, investigators at McGill University Health Centre and McGill University in Montreal and the University of British Columbia in Vancouver reviewed 23 clinical investigations of medical cannabinoid drugs typically oral THC or liquid cannabis extracts and eight observational studies conducted between 1966 and 2007. But there is simply no compelling evidence to support the claim that marijuana is a causal risk factor for developing a psychiatric disorder in otherwise healthy individuals. That figure stood at 58% as of 2013.  Many opponents of medical marijuana make much of the purported link between marijuana use and mental illness. The cognitive process most clearly affected by marijuana is short-term memory. A number of states are beginning to legalize marijuana for recreational use, so there's concern we could see an increase in accidents caused by marijuana. American Psychological Association Plenary Address: Marijuana as Medicine: Can we see past the smoke? This report seeks to provide this guidance by summarizing the most recently published scientific research 2000-2015 on the therapeutic use of cannabis and cannabinoids for a variety of clinical indications.

Danielle Geier, 32, and George Ishler, 39, lured the professor, Ronald Bettig, to a quarry in Potter Township, Pennsylvania, by saying the group could harvest marijuana, reports the New York Daily News. The pair, who were friends with Bettig, are then accused of pushing the man off of a cliff in to the quarry because they thought Bettig had named them in a new version of his will. Geier and Ishler, who police reported were "known drug users," allegedly initially planned to drown Bettig during a trip to the ocean, but instead allegedly decided to kill him in the quarry. The pair also attempted to make the scene appear as if Bettig had been by himself, reports Daily Mail. Geier and Ishler, who were reported to be friends with Bettig, are alleged to have staged the scene by placing Bettig's bag, water bottles and a flashlight near the quarry, as well as his car. The two then went to police to tell them that Bettig and his car had gone missing, and suggested that he may have run away to California. The two became suspects when police found inconsistencies in their stories. Before the professor's death, Geier is reported to have texted Ishler, "So ready I am pissed off," which police think was an indication that she was ready to murder Bettig after he had criticized the way she raised her son, according to New York Daily News. A coworker said Bettig had been known as "the nutty professor" around campus among those who did not know him well, partly for his Socratic method teaching technique. Dean Marie Hardin released a statement about Bettig's death: We are deeply saddened by the loss. He was a part of the fabric of this College for many years.

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In fact, research suggests that those with mental illness might be self-medicating with marijuana. Here’s what is known: About 20 years ago, scientists discovered a system in the brain that responds to 60 chemicals in marijuana, also known as cannabis. In genetically vulnerable individuals, while cannabis may modify the illness onset, severity and outcome, there is no evidence from this study that it can cause the psychosis.” Hall's review, cannabis addiction does exist, and it's more prevalent in adolescents than adults. Bifurcated results for marijuana Based on the study's findings, the outlook for medical marijuana and recreational marijuana is widely bifurcated. Higher THC levels may explain the rise in emergency room visits involving marijuana use. When marijuana users begin using as teenagers, the drug may reduce thinking, memory, and learning functions and affect how the brain builds connections between the areas necessary for these functions. This has been attributed to a diminishing of the “forbidden fruit” effect, and decreased access as marijuana moved from the streets to inside licensed dispensaries. In fact, some of the unique chemicals in marijuana, such as cannabidiol BCD, seem to have anti-psychotic properties. It has an active ingredient called THC that makes you feel high.

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