^ Jump up to: a b Batalla A, Bhattacharyya S, Yücel M, Fusar-Poli P, Crippa JA, Nogué S, Torrens M, Pujol J, Farré M, Martin-Santos R (2013). "Structural and functional imaging studies in chronic cannabis users: a systematic review of adolescent and adult findings". PLOS One. 8 (2): e55821. Bibcode:2013PLoSO...855821B. doi:10.1371/journal.pone.0055821. PMC 3563634. PMID 23390554. The most consistently reported brain alteration was reduced hippocampal volume which was shown to persist even after several months of abstinence in one study and also to be related to the amount of cannabis use Other frequently reported morphological brain alterations related to chronic cannabis use were reported in the amygdala the cerebellum and the frontal cortex...These findings may be interpreted as reflecting neuroadaptation, perhaps indicating the recruitment of additional regions as a compensatory mechanism to maintain normal cognitive performance in response to chronic cannabis exposure, particularly within the prefrontal cortex area.
Cannabis use has the hallmark pathologic features shared by all substance use disorders. Like other drugs of abuse, Cannabis causes compulsive drug-seeking behaviors, loss of self-control, withdrawal symptoms, and the propensity to relapse.57 Cannabis use disorder has been recognized as a bona fide disorder and has been included in the most recent version of the Diagnostic and Statistical Manual of Mental Disorders (fifth edition).58 Long-term clinical outcomes for Cannabis use disorder may be less severe than for other drugs of abuse but the addictive processes appears to be very similar. Animal models of addiction have clearly supported the notion that Cannabis has addictive properties.
Heavy, long-term exposure to marijuana may have biologically based physical, mental, behavioral and social health consequences and may be "associated with diseases of the liver (particularly with co-existing hepatitis C), lungs, heart, and vasculature". It is recommended that cannabis use be stopped before and during pregnancy as it can result in negative outcomes for both the mother and baby. However, maternal use of marijuana during pregnancy does not appear to be associated with low birth weight or early delivery after controlling for tobacco use and other confounding factors. A 2014 review found that while cannabis use may be less harmful than alcohol use, the recommendation to substitute it for problematic drinking was premature without further study. Various surveys conducted between 2015 and 2019 found that many users of cannabis substitute it for prescription drugs (including opioids), alcohol, and tobacco; most of those who used it in place of alcohol or tobacco either reduced or stopped their intake of the latter substances.
The objectivity of scientific evaluation of the medicinal value of marijuana to date has been questioned. In the words of Hirst et al. (1998): “The ...status of cannabis has made modern clinical research almost impossible. This is primarily because of the legal, ethical and bureaucratic difficulties in conducting trials with patients. Additionally, the general attitude towards cannabis, in which it is seen only as a drug of abuse and addiction, has not helped.” In a recent editorial, the respected journal Nature (2001) stated: “Governments, including the US federal government, have until recently refused to sanction the medical use of marijuana, and have also done what they can to prevent its clinical testing. They have defended their inaction by claiming that either step would signal to the public a softening of the so-called ‘war on drugs.’... The pharmacology of cannabinoids is a valid field of scientific investigation. Pharmacologists have the tools and the methodologies to realize its considerable potential, provided the political climate permits them to do so.” Given these current demands for research on medicinal marijuana, it will be necessary to produce crops of drug types of C. sativa.
Reproduced with kind permission from the Australian Drug Foundation. References Australian Drug Foundation. Cannabis Facts. Last updated 25 Jan 2012. http://www.druginfo.adf.org.au/drug-facts/cannabis (accessed Jan 2013). Australian Drug Foundation (ADF) Vision: Healthy People, Strong Communities. Mission: Working together to prevent alcohol and other drug problems in communities.Related ArticlesCannabis psychosisUse of cannabis can cause a condition called drug-induced psychosis. Cannabis useCannabis can affect your physical and mental health with heavy cannabis use potentially causing psycCannabis: tolerance and dependenceAfter prolonged use, cannabis is addictive and people using cannabis regularly develop dependence anCannabis: withdrawal and treatmentIf a dependent person stops taking cannabis, they may experience withdrawal symptoms. Cannabis/marijuana: what are the effects?The effect of cannabis on a person depends on many factors including their size, weight and health aAdvertisement
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Cannabidiol Oil, or CBD as it’s more commonly known, has recently moved to the forefront in the medical cannabis diaspora. It’s a rising star, boasting wide-ranging health benefits.Cannabidiol CBD is one of at least 85 known cannabinoids. These are compounds found in the cannabis plant. Unlike its infamous cousin THC (Tetrahydrocannabinol), however, CBD has no psychoactive properties whatsoever.