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Stunning Stop-Motion Video of South American landscapes.

Obama Opposes Fairness Doctrine (Lies Talk Post)

dystopianfuturetoday says...

Holy crap quantum!?! I heard that Obama DOES have a birth certificate, but it's from another planet. He is a Reptillian shape shifter who's name is really pronounced Bha'rhachxtk Ogh'bahmbha'h. If only we'd heeded your seemingly lazy, petty and politically shallow comments earlier, we might have had some time to prepare for the impending Reptilian invasion fortold by prophet Marc Singer.

Steve Brule's Last Resort Fighting

Never Get Busted Again... Tips from an ex-cop

Fade says...

Talk out your arse much cobalt?
http://en.wikipedia.org/wiki/Health_issues_and_the_effects_of_cannabis

[edit] Toxicity
According to the Merck Index,[2] the LD50 (dosage lethal to 50% of rats tested) of Δ9-THC by inhalation is 42 mg/kg of body weight. That is the equivalent of a man weighing 75 kg (165 lb) inhaling the THC found in 21 grams of extremely high-potency (15% THC) marijuana all in one sitting, assuming no THC is lost through smoke loss or absorption by the lungs. For oral consumption, the LD50 for male rats is 1270 mg/kg, and 730 mg/kg for females—equivalent to the THC in about a pound of 15% THC marijuana.[3] The ratio of cannabis material required to saturate cannabinoid receptors to the amount required for a fatal overdose is 1:40,000.[4] There have been no reported deaths or permanent injuries sustained as a result of a marijuana overdose. It is practically impossible to overdose on marijuana, as the user would certainly either fall asleep or otherwise become incapacitated from the effects of the drug before being able to consume enough THC to be mortally toxic. According to a United Kingdom government report, using cannabis is less dangerous than tobacco, prescription drugs, and alcohol in social harms, physical harm and addiction.[5]





[edit] Confounding combination
The most obvious confounding factor in cannabis research is the prevalent usage of other recreational drugs, including alcohol and tobacco.[6] One paper claims marijuana use can increase risk of squamous cell carcinoma of the head and neck. [7] Such complications demonstrate the need for studies on cannabis that have stronger controls, and investigations into the symptoms of cannabis use that may also be caused by tobacco. Some people question whether the agencies that do the research try to make an honest effort to present an accurate, unbiased summary of the evidence, or whether they "cherry-pick" their data, and others caution that the raw data, and not the final conclusions, are what should be examined.[8]

However, contrasting studies have linked the smoking of cannabis to lung cancer and the growth of cancerous tumors.[9][10][11][12] A 2002 report by the British Lung Foundation estimated that three to four cannabis cigarettes a day were associated with the same amount of damage to the lungs as 20 or more tobacco cigarettes a day.[13] Some of these finding may be attributed to the well-known custom that many British citizens often mix tobacco with marijuana. It should also be noted that a recent study conducted at a lab in UCLA has found no link between marijuana usage and lung cancer.[citation needed]

Cannabis also has a synergistic toxic effect with the food additive Butylated hydroxyanisole (BHA) and possibly the related compound butylated hydroxytoluene (BHT). The study concluded, "Exposure to marijuana smoke in conjunction with BHA, a common food additive, may promote deleterious health effects in the lung." BHA & BHT are man-made fat preservatives, and are found in many packaged foods including: plastics in boxed Cereal, Jello, Slim Jims, and more. [14]


[edit] Memory
Cannabis is known to act on the hippocampus (an area of the brain associated with memory and learning), and impair short term memory and attention for the duration of its effects and in some cases for the next day[15]. In the long term, some studies point to enhancement of particular types of memory.[16] Cannabis was found to be neuroprotective against excitotoxicity and is therefore beneficial for the prevention of progressive degenerative diseases like Alzheimer's disease.[17] A 1998 report commissioned in France by Health Secretary of State Bernard Condevaux and directed by Dr. Pierre-Bernard Roques determined that, "former results suggesting anatomic changes in the brain of chronic cannabis users, measured by tomography, were not confirmed by the accurate modern neuro-imaging techniques," (like MRI). "Moreover, morphological impairment of the hippocampus [which plays a part in memory and navigation] of rat after administration of very high doses of THC (Langfield et al., 1988) was not shown (Slikker et al., 1992)" (translated). He concluded that cannabis does not have any neurotoxicity as defined in the report, unlike alcohol and cocaine.[18][19][20]


[edit] Adulterated cannabis
Contaminants may be found in hashish when consumed from soap bar-type sources[21]. The dried flowers of the plant may be contaminated by the plant taking up heavy metals and other toxins from its growing environment[22]. Recently, there have been reports of herbal cannabis being adulterated with minute (silica [usually glass or sand], or sugar} crystals in the UK and Ireland. These crystals resemble THC in appearance, yet are much heavier, and so serve again to increase the weight, and hence street value of the cannabis[23].


[edit] Pregnancy
Studies have found that children of marijuana-smoking mothers more frequently suffer from permanent cognitive deficits, concentration disorders, hyperactivity, and impaired social interactions than non-exposed children of the same age and social background.[24][25] A recent study with participation of scientists from Europe and the United States, have now identified that endogenous cannabinoids, molecules naturally produced by our brains and functionally similar to THC from cannabis, play unexpectedly significant roles in establishing how certain nerve cells connect to each other. The formation of connections among nerve cells occurs during a relatively short period in the fetal brain. The study tries to give a closer understanding of if and when cannabis damages the fetal brain[26][27].[28]

Other studies on Jamaica have suggested that cannabis use by expectant mothers does not appear to cause birth defects or developmental delays in their newborn children.[29][30] In a study in 1994 of Twenty-four Jamaican neonates exposed to marijuana prenatally and 20 non exposed neonates comparisons were made at 3 days and 1 month old, using the Brazelton Neonatal Assessment Scale, including supplementary items to capture possible subtle effects. Results showed there were no significant differences between exposed and nonexposed neonates on day 3. At 1 month, the exposed neonates showed better physiological stability and required less examiner facilitation to reach organized states. The neonates of heavy-marijuana-using mothers had better scores on autonomic stability, quality of alertness, irritability, and self-regulation and were judged to be more rewarding for caregivers. This work was supported by the March of Dimes Foundation.[31]


[edit] Cancer
On 23 May 2006, Donald Tashkin, M.D., Professor of Medicine at the David Geffen School of Medicine at UCLA in Los Angeles announced that the use of cannabis does not appear to increase the risk of developing lung cancer, or increase the risk of head and neck cancers, such as cancer of the tongue, mouth, throat, or esophagus.[32]The study involved 2252 participants, with some of the most chronic marijuana smokers having smoked over 22,000 marijuana cigarettes.[32][33][34][35] The finding of Donald Tashkin, M.D., and his team of researchers in 2006 refines their earlier studies published in a Dec. 17th 2000 edition of the peer-reviewed journal Cancer Epidemiology Biomarker and Prevention.[12] Many opponents of marijuana incorrectly cite the original finding of UCLA Medical Center from 2000 as "proof" that marijuana leaves the users at higher risk for cancer of the lung, and cancerous tumors,[9] even though the researchers at the UCLA Medical Center have revised their finding with a more in-depth study on the effects of the use of marijuana. This seemed to contradict assumptions made after some studies, like those from Dale Geirringer et al., which found that 118 carcinogens were produced when marijuana underwent combustion, and two carcinogens {2-Methyl-2, 4(2H-1-benzopyran-5-ol) & 5-[Acetyl benz[e]azulene-3,8-dione} formed when marijuana underwent vaporization with the Volcano Vaporizer.[36] To help explain this seemingly chemical proof of carcinogenity inherent in the process of combustion, Tashkin noted that "one possible explanation for the new findings, he said, is that THC, a chemical in marijuana smoke, may encourage aging cells to die earlier and therefore be less likely to undergo cancerous transformation."[32]

Carl Sagan on Charlie Rose

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