Cannabis, also known as marijuana ) among other names, is a psychoactive drug from the Cannabis plant used primarily for medical or recreational purposes. Tetrahydrocannabinol is the main psychoactive component of cannabis, which is one of the 483 known compounds in the plant. Cannabis can be used by smoking, vaporizing, within food, or as an extract.
About Cannabis (drug) in brief
Cannabis, also known as marijuana ) among other names, is a psychoactive drug from the Cannabis plant used primarily for medical or recreational purposes. Tetrahydrocannabinol is the main psychoactive component of cannabis, which is one of the 483 known compounds in the plant. Cannabis can be used by smoking, vaporizing, within food, or as an extract. Cannabis has various mental and physical effects, which include euphoria, altered states of mind and sense of time, difficulty concentrating, impaired short-term memory and body movement, relaxation, and an increase in appetite. In 2013, between 128 and 232 million people used cannabis. It is the most commonly used illegal drug in the world, though it is also legal in some jurisdictions, with the highest use among adults ) in Zambia, the United States, Canada, and Nigeria. Since the early 20th century, cannabis has been subject to legal restrictions. The possession, use, and cultivation of cannabis is illegal in most countries of the world. Uruguay became the first country to legalize recreational use of cannabis in 2013. Other countries to do so are Canada, Georgia, and South Africa, along with 15 states and the District of Columbia in the U.S. Medical cannabis, or medical marijuana, can refer to the use of Cannabis and its cannabinoids to treat disease or improve symptoms; however, there is no single agreed-upon definition. The rigorous scientific study of cannabis as a medicine has been hampered by production restrictions and by the fact that it is classified as an illegal drug by many governments.
In some cases, cannabis can lead to dissociative states such as depersonalization and derealization. Some users may experience an episode of acute psychosis, which usually abates after six hours, but in rare instances, heavy users may find the symptoms continuing for many days. A relationship between heavy cannabis use and poorer quality of life is associated with heavy use, although the relationship is inconsistent and weaker than for tobacco and other tobacco. There is limited evidence suggesting cannabis can be use to reduce nausea and vomiting during chemotherapy, to improve appetite in people with HIVAIDS, or to treat chronic pain and muscle spasms. It has held sacred status in several religions and has served as an entheogen – a chemical substance – in religious, spiritual, or religious contexts, such as in the Indian shamanic – contexts. The long-term effects of cannabis are not clear. Short-term use increases the risk of both minor and major adverse effects. Common side effects include dizziness, feeling tired and vomiting. At higher doses, effects can include altered body image, auditory andor visual illusions, pseudohallucinations and ataxia from selective impairment of polysynaptic reflexes. Long-term adverse effects may include addiction, decreased mental ability in those who started regular use as adolescents, chronic coughing, and susceptibility to respiratory infections. At high doses, mental effects can including anxiety, delusions, hallucinations, panic, paranoia, and psychosis.