'Lite' low tar cigarettes impair blood flow as much as regular cigarettesMay 15, 2007Low tar "lite" cigarettes impair blood flow through the heart as severely as regular cigarettes, reveals a small study published ahead of print in the journal Heart. The findings are based on 62 people in their mid 20s, with no evidence of coronary artery disease. Twenty had smoked low tar, low nicotine cigarettes (8 mg tar, 0.6 mg nicotine, and 9 mg carbon monoxide) for at least three years. Twenty others had smoked regular cigarettes for the same period (12 mg tar, 0.9 mg nicotine, and 12 mg carbon monoxide), and the remainder were non-smokers. Cigarette smoking is responsible for a fifth of all deaths from cardiovascular disease and triples the risk of heart failure in later life. All participants were assessed for cardiovascular fitness, and in the case of the smokers, these tests were carried out two days before and 30 minutes after smoking two of their usual cigarettes within the space of 15 minutes. The researchers focused on coronary flow velocity reserve (CFVR), which is a measure of how readily coronary arteries can dilate in response to increased blood flow. The two groups of smokers were similar in terms of their general health and the number of cigarettes they regularly smoked. The test results showed that blood pressure and heart rate both climbed after smoking, irrespective of cigarette type. Similarly, CFVR, which was already lower in both groups of smokers than it was in the non-smokers, fell further still after smoking. This was irrespective of cigarette type. CFVR fell sharply from 2.68 to 2.05 in the low tar smokers, and from 2.65 to 2.18 in the regular tar smokers. The CFVR was 3.11 in the non-smokers. The authors say their results show that both light cigarettes and regular cigarettes impair blood flow through the coronary arteries to a similar degree. They add that many smokers switch to low tar, low nicotine cigarettes in the mistaken belief that they will reduce some of the hazardous effects of smoking. BMJ Specialty Journals |
|||||||||||||||||||||
| Related Cigarettes Current Events and Cigarettes News Articles Women Can Quit Smoking and Control Weight Gain Many women don't quit smoking because they are afraid of gaining weight. That's because nicotine suppresses the appetite and boosts a smoker's metabolism. Cigarettes Harbor Many Bacteria Harmful to Human Health Cigarettes are "widely contaminated" with bacteria, including some known to cause disease in people, concludes a new international study conducted by a University of Maryland environmental health researcher and microbial ecologists at the Ecole Centrale de Lyon in France. 90 percent of Africans are not protected by smoke-free laws As African nations are poised to undergo the highest increase in the rate of tobacco use among developing countries, nearly 90 percent of people on the continent remain without meaningful protection from secondhand smoke, according to a new report released at a regional cancer conference today. Crushing cigarettes in a virtual reality environment reduces tobacco addiction Smokers who crushed computer-simulated cigarettes as part of a psychosocial treatment program in a virtual reality environment had significantly reduced nicotine dependence and higher rates of tobacco abstinence than smokers participating in the same program who grasped a computer-simulated ball. Smoking gun: just 1 cigarette has harmful effect on the arteries of young healthy adults Even one cigarette has serious adverse effects on young adults, according to research presented by Dr. Stella Daskalopoulou at the Canadian Cardiovascular Congress 2009, co-hosted by the Heart and Stroke Foundation and the Canadian Cardiovascular Society. Exercise makes cigarettes less attractive to smokers Exercise can help smokers quit because it makes cigarettes less attractive. A new study from the University of Exeter shows for the first time that exercise can lessen the power of cigarettes and smoking-related images to grab the attention of smokers. The study is published in the journal Addiction. Teen smoking-cessation trial first to achieve significant quit rates For the first time, researchers at Fred Hutchinson Cancer Research Center have demonstrated that it is possible to successfully recruit and retain a large number of adolescent smokers from the general population into a smoking intervention study and, through personalized, proactive telephone counseling, significantly impact rates of six-month continuous quitting. Teen attitudes toward smoking linked to likelihood of drinking and using drugs New research by Weill Cornell Medical College researchers looks at the specific ways parents and peers influence teenagers to smoke, drink and use marijuana in combination. Guide on lung cancer in 'never-smokers': A different disease and different treatments A committee of scientists led by Johns Hopkins investigators has published a new guide to the biology, diagnosis and treatment of lung cancer in never-smokers, fortifying measures for what physicians have long known is a very different disease than in smokers. Anti-smoking law helps waiters to quit smoking Researchers from the Catalan Institute of Oncology have studied the impact of the law banning smoking in public places such as bars and restaurants on those working in these places. More Cigarettes Current Events and Cigarettes News Articles |
|||||||||||||||||||||
|
|||||||||||||||||||||
|
|||||||||||||||||||||