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Psychological effects of marijuana use
History of medical marijuana essay
Psychological effects of marijuana use
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Is cannabis use an independent risk factor for the development of psychosis?
Cannabis or marijuana is an annual flowering herb of the Cannabaceae family, containing 3 major species C.Indica C.Sativa and C.Ruderalis. The two former species are of principal interest to those discussing Cannabis use due, to their widespread illicit usage. Cannabis has been cultivated from at least 6000BCE in what is now China. However the Cannabis plant was most likely as a textile when it became used as an intoxicant is less clear [1]. The first indisputable reference to Cannabis’ psychoactive uses come in Herodotus’ ‘Researches’ in 450 BCE where he describes that the “Scythians thew Cannabis on the stones, producing smoke, which they inhaled”[2].
Cannabis when consumed recreationally is generally smoked, vaporized or eaten to achieve the desired effect. The principal active ingredients are THC (Tetrahydrocannabinol) CBD (cannabidiol). However, there are over 400 individual compounds that reside within said plant [3]. THC as the principal psychoactive component acts at CB1 receptors throughout the body but principally within the brain [4] to inhibit adenylate cyclase [5]. It is through the effects on adenylate cyclase that THC increases dopamine release in the striatum indirectly. This is responsible for the subsequent high experienced by the user and these findings suggest that THC could potentially be addictive [6].
Despite widespread ritualistic use throughout the ancient world the British government had no official report on the effects of Cannabis use until the ‘1894 Indian Hemp Commission [7]’. Concluded on the effects of marijuana use in 3 separate grounds Physical Mental and Moral (Morali...
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...gardless of production methods.
Hypotheses on the relationship between Cannabis and Psychotic illness.
These 4 preselected hypotheses are included here so that later evidence as discussed in the studies can refer back to these concise hypotheses to better identify which if any concepts describing the relationship between Cannabis and Schizophrenia are correct[45].
1 that there is a causal link between Cannabis and psychosis.[45]
2 Cannabis worsens prognosis in patients who already have psychotic illness.[45]
3 Cannabis use merely precipitates Psychosis in vulnerable individuals[45]
4 Cannabis is merely more commonly used in psychotic individuals, possibly as a form of self-medication.[45]
By the end of this review there will be a clear picture of which hypothesis provides the best answer to the review question: Is Cannabis an independent risk factor for psychosis?
The purpose of my paper is to prove that marijuana effects teens and their mind. Marijuana is a tobacco-like substance produced by drying the leaves, stems, flower tops of the Cannabis sativa (Indian Hemp) plant (Fact Sheet, 1). It is smoked or eaten to get hallucinated and receive pleasure. It grows just about anywhere. It is illegal in some countries but in others it is used for medical purposes (Encarta, 1). Some names that it is called a joint, nail, pot, Mary Jane, hive, etc. (Fact Sheet and Facts for teens, 1). Marijuana stays in the body for several days after one smoking session. In a chronic user marijuana can stay in the body for up to several weeks (Facts for Teens, 1).
After smoking, or consuming marijuana, it is distributed in the brain. The concentration of marijuana in the brain may be governed by an active transport process in the choroid plexus network of blood vessels in the brain which regulates intraventricular pressure by absorption and secretion of cerebro spinal fluid. one scientific experiment it gave an example of how the distribution of marijuana in the central nervous system could effect man. At a high dose of 30 mg./kg. marked sedation and pronounced motor incoordination peaked at the one hour interval subsiding in 8 hours when over reaction occurred to external stimuli; man reveals incapacitation of cognitive and motor function. High concentrations of marijuana are usually found in the following parts of the brain: the frontal cortex (the general association area), and hippocampus (short term memory and oreintation). As a result, perception of time, mood and general cordination is impaired. It is apparent that marijuana intoxication effects the neurological functions and usually disappears in 24 hours, but can become a permanent malfunction.THC effec...
Today, many people around the world smoke marijuana for therapy or recreation, which is grown from nature, but in some countries, nature is illegal, except a substance which is legal: alcohol. In fact, Marijuana or Marihuana from Spanish language also can be known as cannabis, hemp, weed, and pot. Marijuana is a dry, shredded green and brown mix of leaves, flowers, stem, and seeds from the hemp plant, whose scientific name is Cannabis sativa (National Institute Drug Abuse, 2012). Marijuana has a long history of use as a medicinal herb, and the use has been expended around the world from China to India and the North Africa and leaded to Europe for thousands of years. They also have several different cultures in various ways. For example, it was recorded as medication to treat many kinds of health problems by the Chinese, and the earliest fabric and rope were believed that it has been woven from dried hemp, and around 6000 B.C., marijuana seeds were used as food in China (Canadian medicinal Marijuan, 2010). The Persian prophet Zoroaster also wrote a sacred text on “the Zend-Avesta”, which listed that marijuana was at the top from 10000 medicinal plants in 550 B.C. (Canadian, medicinal Marijuana, 2010). The marijuana has been adapted in people’ lifestyles and social environment over thousand years.
Marijuana in America became a popular ingredient in many medicinal products and was openly sold in pharmacies in the late nineteenth century (“Busted-America’s War on Marijuana Timeline”). The National Institute of Drug Abuse defines marijuana as, “The dried leaves, flowers, stems, and seeds from the hemp plant Cannabis sativa, which contains the psychoactive (mind-altering) chemical delta-9-tetrahydrocannabinol (THC), as well as other related compounds” (“DrugFacts: Marijuana”). It was not until the Food and Drug act of 19...
The term "marijuana" is a word with indistinct origins. Some believe it is derived from the Mexican words for "Mary Jane"; others hold that the name comes from the Portuguese word marigu-ano, which means "intoxicant". The use of marijuana in the 1960's might lead one to surmise that marihuana use spread explosively. The chronicle of its 3,000 year history, however, shows that this "explosion" has been characteristic only of the contemporary scene. The plant has been grown for fiber and as a source of medicine for several thousand years, but until 500~ AD its use as a mind-altering drug was almost solely confined in India. The drug and its uses reached the Middle and Near East during the next several centuries, and then moved across North Africa, appeared in Latin America and the Caribbean, and finally entered the United States in the early decades of this century. Marijuana can even be used as "Biomass" fuel, where the pulp (hurd) of the hemp plant can be burned as is or processed into charcoal, methanol, methane, or gasoline. This process is call...
The history of marijuana in North America is integral in understanding the reasons it is now illegal and how to...
Before Americans can make accusations that marijuana can only be used for the sole purpose of euphoric pleasure, they should first become knowledgeable of cannabis’s original and highly valuable uses that gave the plant its primary popularity. The herbal plant was actually a food source around 6000 BC, and it was used as a fiber two thousand years later. Another couple thousand years later was when cannabis obtained its first medical record in China and soon traveled to India and North Africa where cannabis began its use as a “recreational hallucinogen.” When Europe greeted marijuana at about 500 BC, users began classifying in what methods the plant can treat various medical conditions. The Americas were first introduced t...
Macleod, J., Oakes, R., Copello, A., Crome, I., Egger, M., Hickman, M., & ... Smith, G. (2004). Psychological and social sequelae of cannabis and other illicit drug use by young people: a systematic review of longitudinal, general population studies. Lancet,363(9421), 1579-1588.
Bibliography 1) Friedman, Milton. “Prohibition and Drugs.” Newsweek. 1972 2) Potter, Beverly. The Healing Magic of Cannabis.
First off it is important to understand the effects of cannabis use and its history. When smoking cannabis THC is the leading stimulant released.
The Effects of Marijuana Marijuana is a mood altering or psychoactive drug that has many nicknames, such as pot, weed, ganja, sensi, herb, and. others. The. It is an ancient drug that dates back to hundreds of years to the Asia. Many cultures have used it during meditation, religious.
Introduction The legalization of marijuana is considered a controversial issue, something that can benefit people for medical purposes, but what about recreationally? Marijuana has been illegal since 1937, but there’s never been a bigger push for legalization. There are several reasons why it is illegal, because of government propaganda and big industry not wanting to lose money, but this will be discussed later. The purpose of this paper is to educate, theorize, and discuss various aspects of marijuana, such as its history, development, and the advantages and disadvantages of marijuana legalization. Finally, my personal reflection on legalization and marijuana in general will be discussed.
Sewell, Ranganathan, & D’Souza’s (2009) peer reviewed journal article discusses the possible link, if any, between using cannabis and experiencing psychosis. This article discussed how cannabis was likely to temporarily cause symptoms similar to those of schizophrenia in “healthy individuals” and increase the symptoms in patients already diagnosed with schizophrenia although they were stable on medications (p.153). However, the authors put emphasis on the variations from individual to individual and variations depending on the dosage of cannabis smoked. Sewell, Ranganathan & D’Souza (2009) also noted that cannabinoids have the ability to modify neurotransmitter release through activating presynaptic cannabinoid receptors (p.155). Furthermore, they declared the ability of cannabinoids to alter the functioning of dopamine, gamma-aminobutyric acid and glutamate in the brain. (p. 155-156). Going deeper, this article proposes that individuals with a family history of schizophrenia may be more prone to the psychosis that may appear ...
Ingraham, Janet. "Lee, Martin A. Smoke Signals: A Social History of Marijuana--Medical, Recreational, and Scientific." Library Journal 1 Sept. 2012: 117. Student Edition. Web. 19 Mar. 2014.
Stanley, Janet E., Stanley J. Watson, and John A. Benson. Marijuana and Medicine: Assessing the Science Base. Washington D.C.: National Academy P, 1999.