http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. A University of Louisville scientist has determined for the first time how the bacterium that causes Legionnaires' disease manipulates our cells to generate the amino acids it needs to grow and cause infection and inflammation in the lungs. The results are published online today (Nov. 17) in Science. http://phys.org/news240767183.html Biology Thu, 17 Nov 2011 15:46:41 EST news240767183 Adolescent obesity is a major public health problem that impacts one out of every three children, resulting in 4-5 million overweight youth in the United States. In a study published in the December 2009 issue of the Journal of the American Dietetic Association, researchers evaluated differences in weight control behaviors, including dietary intake and physical activity, comparing overweight adolescents who lost weight and those who did not in order to better understand which strategies could be most effective. http://phys.org/news178868628.html Medicine & Health Tue, 01 Dec 2009 07:20:01 EST news178868628 (PhysOrg.com) -- If people can learn anything from rats, what to eat might be one of the most useful lessons. University of South Florida Professor David Diamond, in the Departments of Psychology, Molecular Pharmacology and Physiology, and a career scientist at the Tampa VA Hospital, investigated the effects of a typical American diet, which is high in fat and sugar, compared to an Atkins-type diet, which is high in animal and vegetable fat but low in sugar, on the physiology and behavior of rats. Lesson learned: choosing between the so-called American diet and the Atkins diet can make a difference in managing weight and one’s response to stress. They found that rats fed the American diet exhibited greater anxiety and gained more weight than rats which were fed either the Atkins diet or a control diet, which was low in both fat and sugar. http://phys.org/news175187601.html Medicine & Health Mon, 19 Oct 2009 17:30:02 EST news175187601