Highest cannabis users are Australians
October 20, 2009(PhysOrg.com) -- A new Lancet paper co-authored by a UQ researcher states that Australians are the highest cannabis users in the world, only matched by USA and New Zealand.
The paper was published at the weekend by Professor Wayne Hall of UQ's School of Population Health and Professor Louisa Degenhardt of the National Drug and Alcohol Research Centre at UNSW.
The researchers identify that 1 in 25 people in the 15-64 age group are using cannabis, despite adverse health effects including chronic use and dependence. The paper reviews the health issues surrounding cannabis use from a public health perspective.
The most adverse effects [of cannabis] include a dependence syndrome, increased risk of motor vehicle crashes, impaired respiratory function, cardiovascular disease, and adverse effects of regular use on adolescent psychosocial development and mental health, the paper outlines.
Regular cannabis use, especially daily, is linked to chronic health effects including bronchitis, impaired cognitive functioning, a doubled risk of schizophrenia compared to non-users, and cannabis dependence which affects one in ten users.
Professor Hall believes that the young uptake of cannabis is a likely cause for lifetime adverse health issues.
"Generally, the more people who use any drug, the earlier they start using and the more often they use, the more likely they are to experience these harms," he said.
"Evidence has strengthened for young people at risk of adverse cannabis effects. When they initiate early and become regular users in their mid-teens, they are at higher risk of psychoses and poorer psychosocial outcomes in adolescence.
"The existence of a cannabis dependence syndrome is confirmed, which means policy makers should focus on providing advice for young adults and teenagers before they commence using cannabis."
Despite the number of adverse effects, the paper states that the public health burden of cannabis is "modest", causing 0.2 percent of disease burden in Australia who have one of the highest reported rates of cannabis use.
This was 10 percent of the burden attributable to all illicit drugs.
Professor Hall urges further research on the longer term health risks of cannabis, given that cannabis use is common in developed countries.
"Information on patterns of its use should be routinely collected in epidemiological research and clinical studies so that its health effects can be better understood," he said.
More information: Read the full publication here.
Provided by University of Queensland (news : web)
Oct 16, 2009 |
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We need to refine drugs that we find enjoyable to remove the negatives and enhance their positives. We must adapt to drugs and overcome their stupefying effects and stabilize them within our societies because they're aren't going away, and we're never going to stop using them.
It is tiresome to hear a link to schizophrenia when cannibinoids do not even effect the same area of the brain, did the researchers ever perhaps postulate that people who will develop schizophrenia are more prone to try and use or abuse a drug based on depression?
Or how about vascular disease- I'd like to know how a compound that acts as a vaso-dilator or constrictor, and/or able to encourage new structural growth or reverse it very accurately in a regional way does that, maybe cause they also smoke cigarettes, I would be willing to bet that most of their study comprised of marijuana smokers who also smoke tobacco, and the corresponding number of non marijuana smokers had statistically less tobacco smokers.
Chronic mental impairment, sorry but no- unequivocally all impairment is gone within 3 months with room for improvement, hardly persistent...
Marijuana is not a mind altering drug, but religion absolutely is. Religion will allow and make you kill other people because 'god' wants it so.