Extracts can also be made from the cannabis plant (see "Marijuana Extracts"). When a person smokes marijuana, THC quickly passes from the lungs into the . marijuana smoke has similar health risks as secondhand tobacco smoke. Although activists believe smoking pot has no negative effects, within the first hour after smoking marijuana, compared to their general risk of. Benefits. People have turned to the cannabis plant as medicine for Ongoing pain (this is the most common use for medical marijuana); Nausea or The evidence is stronger for self-reported symptoms by people with.
Health and Dangers Smoking Effects of Weed Marijuana:
Studies examining this effect have used high ratios of CBD to THC, and it is unclear to what extent these laboratory studies translate to the types of cannabis used by real life users. Teenage cannabis users show no difference from the general population in incidence of major depressive disorder MDD , but an association exists between early exposure coupled with continued use into adult life and increased incidence of MDD in adulthood.
Among those who have been previously diagnosed with bipolar disorder , cannabis may worsen the occurrence of manic symptoms. Adolescent cannabis users show no difference from their peers in suicidal ideation or rate of suicide attempts, but those who continue to use cannabis into adult life exhibit an increased incidence of both, although multiple other contributory factors are also implicated.
In the general population a weak indirect association appears to exist between suicidal behaviour and cannabis consumption in both psychotic and non-psychotic users,  although it remains unclear whether regular cannabis use increases the risk of suicide. The gateway drug hypothesis asserts that the use of soft drugs such as cannabis, tobacco or alcohol may ultimately lead to the use of harder drugs.
Whether the role of cannabis in other drug use is causative or simply the result of the same influencing factors of drug use in general is debated. Large-scale longitudinal studies in the UK and New Zealand from and showed an association between cannabis use and an increased probability of later disorders in the use of other drugs. A literature review said that exposure to cannabis was "associated with diseases of the liver particularly with co-existing hepatitis C , lungs, heart, and vasculature".
The authors cautioned that "evidence is needed, and further research should be considered, to prove causal associations of marijuana with many physical health conditions". Imaging studies suggest that long-term exposure does not lead to decreases in white matter or grey matter volume, but may lead to reductions in hippocampal volume.
Variations in the methodologies used lend some uncertainty to this conclusion. The acute effects of cannabis use in humans include a dose-dependent increase in heart rate, typically accompanied by a mild increase in blood pressure while lying down and postural hypotension - a drop in blood pressure when standing up. These effects may vary depending on the relative concentration of the many different cannabinoids that can affect the cardiovascular function, such as cannabigerol.
Smoking cannabis decreases exercise tolerance. Cannabis use by people with cardiovascular disease poses a health risk because it can lead to increased cardiac work, increased catecholamine levels, and impaired blood oxygen carrying capacity due to the production of carboxyhemoglobin. A review examining the relation of cancer and cannabis found little direct evidence that cannabinoids found in cannabis, including THC , are carcinogenic.
Cannabinoids are not mutagenic according to the Ames test. However, cannabis smoke has been found to be carcinogenic in rodents and mutagenic in the Ames test. Correlating cannabis use with the development of human cancers has been problematic due to difficulties in quantifying cannabis use, unmeasured confounders , and that cannabinoids may have anti-cancer effects.
According to a literature review, cannabis could be carcinogenic, but there are methodological limitations in studies making it difficult to establish a link between cannabis use and cancer risk.
According to Gordon and colleagues, "several recent studies suggest an association between marijuana use and testicular germ cell tumors". There have been a limited number of studies that have looked at the effects of smoking cannabis on the respiratory system. Regular cannabis smokers show pathological changes in lung cells similar to those that precede the development of lung cancer in tobacco smokers. A review which specifically examined the effects of cannabis on the lung concluded "[f]indings from a limited number of well-designed epidemiological studies do not suggest an increased risk for the development of either lung or upper airway cancer from light or moderate use, although evidence is mixed concerning possible carcinogenic risks of heavy, long-term use.
In the International Lung Cancer Consortium found no significant additional lung cancer risk in tobacco users who also smoked cannabis. Nor did they find an increased risk in cannabis smokers who did not use tobacco. They concluded that "[o]ur pooled results showed no significant association between the intensity, duration, or cumulative consumption of cannabis smoke and the risk of lung cancer overall or in never smokers. Cannabis smoke contains thousands of organic and inorganic chemicals, including many of the same carcinogens as tobacco smoke.
They said there was an increased risk from each cannabis cigarette due to drawing in large puffs of smoke and holding them. A review of studies in the United States found that although some supported the hypothesis that cannabis use increased the risk of getting head and neck cancer, when other factors are accounted for the majority did not. A literature review by Gordon and colleagues concluded that inhaled cannabis is associated with lung disease,  although Tashkin's review has found "no clear link to chronic obstructive pulmonary disease ".
Of the various methods of cannabis consumption, smoking is considered the most harmful; the inhalation of smoke from organic materials can cause various health problems e. Isoprenes help to modulate and slow down reaction rates, contributing to the significantly differing qualities of partial combustion products from various sources. Smoking cannabis has been linked to adverse respiratory effects including: In a few case reports involving immunocompromised patients, pulmonary infections such as aspergillosis have been attributed to smoking cannabis contaminated with fungi.
The transmission of tuberculosis has been linked to cannabis inhalation techniques, such as sharing water pipes and ' Hotboxing '. A study released by the National Academies of Sciences, Engineering, and Medicine cited significant evidence for a statistical link between mothers who smoke cannabis during pregnancy and lower birth weights of their babies.
No fatal overdoses associated with cannabis use have been reported. Motor vehicle accidents, suicide, and possible respiratory and brain cancers are all of interest to many researchers, but no studies have been able to show a consistent increase in mortality from these causes.
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The Journal of Clinical Psychiatry. Harefuah Review in Hebrew. Substance abuse and rehabilitation. Explicit use of et al. Addict Sci Clin Pract Review. Drug and Alcohol Dependence. A guided systematic review". Asian J Psychiatr Review. Dtsch Arztebl Int Review.
Revista Brasileira de Psiquiatria. Heightened frequency of medical cannabis use among those with PTSD". Frontiers in Psychiatry Review. Susceptibility to Psychiatric Illness". Annual Review of Clinical Psychology. Cochrane Database of Systematic Reviews. Curr Psychiatry Rep Review. Health and Medicine Division". Australian National Council on Drugs. Archived from the original on August 21, Uses authors parameter link CS1 maint: A systematic review and meta-analysis".
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Drug Use and Abuse. Out of the respiratory system, THC the active compound in cannabis exits the lungs and enters the bloodstream, where it moves throughout the body. The National Institute on Drug Abuse cautions that the chemical can increase the heart rate by as many as 50 beats per minute, which can last as long as three hours. Smokers who have heart disease could be at a greater risk of heart attack.
Research from the Journal of the American Heart Association suggests that regular marijuana use can not only contribute to the possibility of a heart attack, but also to heart rhythm disorders and stroke , even in young people who have no other risk factors for heart disease. The point is echoed by the American College of Cardiology , which notes that marijuana causes irregular heart rates and increases the risk of an acute coronary syndrome, which refers to any number of conditions that can be brought on by the sudden interruption of the blood flow to the heart.
As a result of this, users who are susceptible to conditions of the heart are taking a serious risk when they smoke marijuana. One of the more distressing risks of long-term effects of marijuana consumption is found in women who are pregnant.
Marijuana has a complicated relationship with sexual libido and function. However, animal studies have found that marijuana inhibits the receptors in the erectile tissue of the animal penis, according to a study in the Journal of Sexual Medicine , suggesting that cannabis consumption before sex does more to limit sexual function than it does to help it. Even as some research has suggested that long-term marijuana use carries a minimal risk of physical consequences, such as that published in JAMA , scientists still urge caution.
The sentiment is shared by some smokers themselves. Writing in Vice magazine, one user noted that most of the heavy smokers he knows get high on a regular basis without the stereotypical feelings of laziness or paranoia. Some went so far as to note that long-term weed use even changed their personalities, making them less outgoing and socially engaged.
One negative effect the JAMA scientists noticed was that people who smoked pot for a long time tended to have worse periodontal gum health than others, which in some cases led to the development of gum disease. Aside from effects on the brain and body, what else can the long-term consumption of marijuana do?
The Clinical Psychological Science journal looked at what cannabis did to midlife economic and social status, and wrote that regular cannabis users experienced downward social mobility and financial difficulties, like struggling with debt and cash flow.
Nonetheless, even as the legal and political trend is to move marijuana into the mainstream, the medical community has sounded alarm bells over what years-long exposure to cannabis can do. Home marijuana rehab long term effects. Marijuana and Memory Problems The memory issues come from the way marijuana hits the hippocampus, the region of the brain that regulates short-term memory.
The risk of addiction: This is only for one in 10 users; however, for people who start their cannabis use in adolescence, the rate increases to one in six.
Withdrawal is also a real problem; discontinuing marijuana intake after prolonged use causes disruptions to daily life through depression, insomnia, anxiety, and loss of appetite. The possibility of testicular cancer: She has more than 10 years of professional editing experience that includes working as a web editor for several major online publishers and editing medical content ranging from academic texts to online training and re-certification courses for emergency medical service responders.
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Health effects of cannabis
Over the years, research has yielded results to suggest that marijuana may be of benefit in the treatment of some conditions. These are listed. Smoking marijuana produces euphoria and a range of Several studies suggest that "vaping" is better for health than smoking pot. that there was a connection between marijuana smoking and increased risk of lung cancer. How cannabis (marijuana, weed, dope, pot) affects you, the risks and where to find If you smoke cannabis with tobacco, you're likely to get addicted to nicotine .