Cannabis
hideCannabis sativa L. Cannabis indica Lam. (putative) Cannabis ruderalis Janisch. (putative)
Cannabis (Cán-na-bis) is a genus of flowering plants that includes three putative species, Cannabis sativa L., Cannabis indica Lam., and Cannabis ruderalis Janisch. These three taxa are indigenous to Central Asia, South Asia, and surrounding regions. Cannabis has long been used for fibre (hemp), for medicinal purposes, and as a recreational drug. Industrial hemp products are made from Cannabis plants selected to produce an abundance of fiber and minimal levels of THC (Δ9- tetrahydrocannabinol), a psychoactive molecule that produces the "high" associated with marijuana. The psychoactive product consists of dried flowers and leaves of plants selected to produce high levels of THC. Various extracts including hashish and hash oil are also produced from the plant.
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News tagged with cannabis
Pot and pop: New research finds stronger link between music and marijuana use among teens
Medicine & Health / Psychology & Psychiatry
Dec 22, 2009 |
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Teens who frequently listen to music that contains references to marijuana are more likely to use the drug than their counterparts with less exposure to such lyrics, according to a University of Pittsburgh School of Medicine ...
The use and misuse of alcohol and marijuana can be traced to a common set of genes
Dec 18, 2009 |
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Marijuana is the most commonly used illicit drug in the United States. Roughly eight to 12 percent of marijuana users are considered "dependent" and, just like alcohol, the severity of symptoms increases with heavier use. ...
Study confirms that cannabis is beneficial for multiple sclerosis
Medicine & Health / Neuroscience
Dec 04, 2009 |
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Cannabis can reduce spasticity in multiple sclerosis (MS) patients. A systematic review, published in the open access journal BMC Neurology, found that five out six randomized controlled trials reported a reduction in spa ...
Is cannabis the answer to Booze Britain's problems?
Dec 01, 2009 |
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Substituting cannabis in place of more harmful drugs may be a winning strategy in the fight against substance misuse. Research published in BioMed Central' open access Harm Reduction Journal features a poll of 350 cannab ...
Cannabis and adolescence
Medicine & Health / Psychology & Psychiatry
Dec 17, 2009 |
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Canadian teenagers are among the largest consumers of cannabis worldwide. The damaging effects of this illicit drug on young brains are worse than originally thought, according to new research by Dr. Gabriella Gobbi, a psychiatric ...
The herbal remedy: Teens use cannabis for relief, not recreation
Apr 22, 2009 |
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When legal therapies let them down, some teens turn to cannabis. A new study, published in BioMed Central's open access journal Substance Abuse, Treatment, Prevention and Policy suggests that around a third of teens who sm ...
Family life can lead to cannabis disorders
Dec 09, 2009 |
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(PhysOrg.com) -- One in five young people experience a cannabis use disorder, according to a UQ and Mater Hospital study published today in the American Journal of Drug and Alcohol Abuse.
Four percent of adults worldwide using cannabis: Lancet
Oct 16, 2009 |
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Nearly four percent of adults around the world use cannabis, even though the drug raises many major health concerns, according to a paper published in The Lancet on Friday.
Impact of cannabis on bones changes with age, study finds
Aug 13, 2009 |
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Scientists investigating the effects of cannabis on bone health have found that its impact varies dramatically with age.
Highest cannabis users are Australians
Oct 20, 2009 |
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(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.
Pot shot: Scientists find cannabis trigger for forgetfulness
Medicine & Health / Neuroscience
Aug 02, 2009 |
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Researchers on Sunday said they had pinpointed the biochemical pathway by which cannabis causes memory loss in mice.
Weeding out marijuana: Researchers close in on engineering recognizable, drug-free Cannabis plant
Sep 15, 2009 |
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In a first step toward engineering a drug-free Cannabis plant for hemp fiber and oil, University of Minnesota researchers have identified genes producing tetrahydrocannabinol (THC), the psychoactive substance in marijuana. ...
Cannabis alters human DNA
Jun 16, 2009 |
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A new study published by University of Leicester researchers has found "convincing evidence" that cannabis smoke damages DNA in ways that could potentially increase the risk of cancer development in humans.
Hollow mask illusion fails to fool schizophrenia patients
Medicine & Health / Neuroscience
Apr 06, 2009 |
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Patients with schizophrenia are able to correctly see through an illusion known as the 'hollow mask' illusion, probably because their brain disconnects 'what the eyes see' from what 'the brain thinks it is seeing', according ...
Cannabis compound can help cells
Feb 19, 2009 |
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(PhysOrg.com) -- Cannabis has been used recreationally and for medicinal purposes for centuries, yet its 60 plus active components are only partly understood. Now scientists have discovered how a compound ...
