Weed All About It: A guide to growing, rolling, smoking, and eating your green

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Marijuana use has also been linked to other mental health problems, such as depression, anxiety, and suicidal thoughts among teens. However, study findings have been mixed. Are there effects of inhaling secondhand marijuana smoke? Failing a Drug Test? Gianessi, Leonard P (2013). "The increasing importance of herbicides in worldwide crop production". Pest Manag. Sci. 69 (10): 1099–1105. doi: 10.1002/ps.3598. PMID 23794176. So far, most studies have focused on CBD and THC, but scientists are looking into the effects of other cannabinoids, too. The NIDA add that up to 17% of those who start using cannabis in their teens may become dependent on it. Cannabis withdrawal Schauer GL, King BA, Bunnell RE, Promoff G, McAfee TA. Toking, Vaping, and Eating for Health or Fun: Marijuana Use Patterns in Adults, U.S., 2014. Am J Prev Med. 2016 Jan;50(1):1-8.

In the UK, most people mix it with tobacco and roll it into a cannabis cigarette known as a spliff or joint. Some people don’t use tobacco at all and make weed-only spliffs - either because they prefer it that way or to avoid becoming dependent on nictotine. Smoke bongs competing with the desired plants for the resources that a plant typically needs, namely, direct sunlight, soil nutrients, water, and (to a lesser extent) space for growth; CBD is one of many substances that occurs in cannabis. It is not psychoactive. The drug for treating these conditions involves a purified form of CBD. The approval was based on the findings of research and clinical trials. Asbridge M, et al. (2012). Acute cannabis consumption and motor vehicle collision risk: Systematic review of observational studies and meta-analysis. DOI: Medical cannabis" is a broad term for any sort of cannabis-based medicine used to relieve symptoms.Cannabis is made up of more than 120 components, which are known as cannabinoids. Experts still aren’t sure what each cannabinoid does, but they have a pretty good understanding of two of them, known as cannabidiol (CBD) and tetrahydrocannabinol (THC). MacCallum, C. A., & Russo, E. B. (2018). Practical considerations in medical cannabis administration and dosing. The review found that cannabis, or products containing cannabinoids — which are the active ingredients in cannabis, or other compounds that act on the same receptors in the brain as cannabis— are effective at relieving chronic pain. Alcoholism and drug addiction Taxonomically, the term "weed" has no botanical significance, because a plant that is a weed in one context, is not a weed when growing in a situation where it is wanted. Some plants that are widely regarded as weeds are intentionally grown in gardens and other cultivated settings. For this reason, some plants are sometimes called beneficial weeds. Similarly, volunteer plants from a previous crop are regarded as weeds when growing in a subsequent crop. Thus, alternative nomenclature for the same plants might be hardy pioneers, cosmopolitan species, volunteers, "spontaneous urban vegetation," etc. [9] This article is about plants specifically called "weeds". For the psychoactive plant commonly called "weed", see Cannabis (drug). For other uses, see Weed (disambiguation).

Impairment of judgment: A 2012 study reported a higher chance of having a road traffic accident when driving within 3 hours of smoking cannabis. The effects of cannabis can vary massively. Some people say feeling 'stoned' makes them feel chilled out and happy in their own thoughts, while others say it makes them giggly and chatty. But it can also make people feel lethargic, unmotivated and some people become paranoid, confused and anxious. Introduced species have been observed to undergo rapid evolutionary change to adapt to their new environments, with changes in plant height, size, leaf shape, dispersal ability, reproductive output, vegetative reproduction ability, level of dependence on the mycorrhizal network, and level of phenotype plasticity appearing on timescales of decades to centuries. [35] Invasive species can be more adaptable in their new environments than in their native environments, occupying broader ranges in areas where they are invasive than in areas where they are native. Hybridization between similar species can produce novel invasive plants that are better adapted to their surroundings. Polyploidy is also observed to be strongly selected for among some invasive populations, such as Solidago canadensis in China. Many weed species are now found almost worldwide, with novel adaptations that suit regional populations to their environments. [25] Negative impacts Invasive Canada Goldenrod as a roadside weed in Poland Australia, 1907: Cattlemen survey 700 carcasses of cattle that were killed overnight by a poisonous plant. [36] Although whether a plant is a weed depends on context, plants commonly defined as weeds broadly share biological characteristics that allow them to thrive in disturbed environments and to be particularly difficult to destroy or eradicate. In particular, weeds are adapted to thrive under human management in the same way as intentionally grown plants. [1] Since the origins of agriculture on Earth, agricultural weeds have co-evolved with human crops and agricultural systems, and some have been domesticated into crops themselves after their fitness in agricultural settings became apparent. [10] Regular cannabis smoking is linked to increased risk of chronic cough, but “ it is unclear” whether smoking cannabis worsens lung function or increases the risk of chronic obstructive pulmonary disease or asthma.

Many more large, long-term studies in humans are needed to fully understand the lasting effects of cannabis use. Brain development Wolff V, Zinchenko I, Quenardelle V, Rouyer O, Geny B. Characteristics and Prognosis of Ischemic Stroke in Young Cannabis Users Compared With Non-Cannabis Users. J Am Coll Cardiol. 2015 Nov 3;66(18):2052-2053. C. A. Franz and W. H. Frishman, “Marijuana Use and Cardiovascular Disease,” Cardiol Rev, vol. 24, no. 4, pp. 158–162, 2016. Marijuana can make the heart beat faster and can make blood pressure higher immediately after use. 11,12 It could also lead to increased risk of stroke, heart disease, and other vascular diseases. 13-17 Driving Volkow ND, Swanson JM, Evins AE, DeLisi LE, Meier MH, Gonzalez R, Bloomfield MA, Curran HV, Baler R. Effects of Cannabis Use on Human Behavior, Including Cognition, Motivation, and Psychosis: A Review. JAMA Psychiatry. 2016 Mar;73(3):292-7. Watt, John Mitchell; Breyer-Brandwijk, Maria Gerdina (1962). The Medicinal and Poisonous Plants of Southern and Eastern Africa (2nded.). E & S Livingstone.

Ziska, Lewis H.; Blumenthal, Dana M.; Franks, Steven J. (2019). "Understanding the nexus of rising CO2, climate change, and evolution in weed biology". Invasive Plant Science and Management. 12 (2): 79–88. doi: 10.1017/inp.2019.12. S2CID 199632010. In June 2018, the Food and Drug Administration (FDA) approved the use of a medication containing cannabidiol (CBD) to treat two rare, severe, and specific types of epilepsy — called Lennox-Gastaut syndrome and Dravet syndrome — that are difficult to control with other types of medication. This CBD-based drug is known as Epidiolex. Compared to those who don't use marijuana, those who frequently use large amounts report the following:Smoked marijuana, regardless of how it is smoked, can harm lung tissues and cause scarring and damage to small blood vessels. 20,21 While more research on the health consequences of breathing secondhand marijuana smoke is needed, there is concern that it could cause harmful health effects, including among children. Mental Health If you experience any side effects from medical cannabis, report these to your medical team. You can also report them through the Yellow Card Scheme. Wang X, Derakhshandeh R, Liu J, et al. One Minute of Marijuana Secondhand Smoke Exposure Substantially Impairs Vascular Endothelial Function. J Am Heart Assoc. 2016;5(8). doi:10.1161/JAHA.116.003858. the environment you're in (you're more likely to feel paranoid or anxious if you don't feel comfortable where you are or if you're with people you don't trust) Callaghan, R. C., et al. (2017). Cannabis use and incidence of testicular cancer: A 42-year follow-up of Swedish men between 1970 and 2011.