Study finds marijuana ingredient promotes tumor growth, impairs anti-tumor defenses
...e more of a cancer risk than smoking tobacco. The tar portion of marijuana smoke, compared to that of to.... And marijuana smoke deposits four times as much tar in the respiratory tract as does a comparable amount of tobacco, thus increasing exposure to carcino...Scientists say NOW is the time to stop smoking
...alth, even among older smokers; Evidence that low tar or low nicotine cigarettes do not significantly reduce health risks; The availability of at least 5 medications for smoking cessation that have been approved by the Food and Drug Administration; and Evidence that adolescents who smoke can experienc...Low tar cigarettes do not cut lung cancer risk
... cancer is no different in people who smoke medium tar cigarettes, low tar cigarettes, or very low tar cigarettes, concludes new research from the United States. Researchers ...Black tar heroin use explains lower HIV levels among injection drug users in the Western US
UCSF researchers have found that use of black tar heroin by injection drug users in West Coast citie...ancy is found in the distribution and use of black tar heroin and is due to its unique chemical properties," said the study's lead author, Daniel H. Ciccar...Scents will not rouse us from slumber, says new Brown University study
...st stage of sleep. Pyridine is a component of coal tar and used as a herbicide for firewood, and thus a likely byproduct of many real fires, according to the authors. However, sound woke the participants regardless of the sleep stage. A moderately loud auditory tone produced arousal from sleep virtually......pped, argue cancer experts in this week's BMJ. The tar delivery of cigarettes is routinely measured with ...ad to the smoker taking in much greater amounts of tar and nicotine than are measured by the machine. The tobacco industry has also modified cigarette desi...