http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Despite recent declines in cigarette use in the U.S., nicotine dependence has remained steady among adults and has actually increased among some groups. The finding by researchers at Columbia University Mailman School of Public Health suggests that public health initiatives have been far more successful in preventing Americans from taking up smoking than in persuading hard-core smokers to stop. The study is available online in the American Journal of Public Health and will be published in the August 2009 issue. http://www.physorg.com/news165064403.html Medicine & Health Wed, 24 Jun 2009 12:13:43 EST news165064403 Even occasional cigarette smoking can impair the functioning of your arteries, according to a new University of Georgia study that used ultrasound to measure how the arteries of young, healthy adults respond to changes in blood flow. http://www.physorg.com/news142596152.html Medicine & Health Tue, 07 Oct 2008 11:02:32 EST news142596152