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. Breathing carbon dioxide can trigger panic attacks, but the biological reason for this effect has not been understood. A new study by University of Iowa researchers shows that carbon dioxide increases brain acidity, which in turn activates a brain protein that plays an important role in fear and anxiety behavior. http://www.physorg.com/news178374999.html Medicine & Health Wed, 25 Nov 2009 12:37:43 EST news178374999 A team led by Yale University scientists has developed a new approach to studying how immune cells chase down bacteria in our bodies. Their findings are described in the November 15 issue of Nature Methods Advanced Online Publication. http://www.physorg.com/news177607120.html Chemistry Mon, 16 Nov 2009 15:19:21 EST news177607120 (PhysOrg.com) -- Experiments led by researchers at the University of California, Berkeley, have demonstrated that normally friendly ants can turn against each other by exploiting the chemical cues they use to distinguish colony-mates from rivals. http://www.physorg.com/news175894442.html Biology Tue, 27 Oct 2009 20:34:55 EST news175894442 (PhysOrg.com) -- Harvard researchers have established a link between the growth of blood vessels and the mechanical stresses caused by the environment within which the vessels grow, a new understanding that researchers hope can lead to novel disease treatments based on manipulating blood flow to living tissues. http://www.physorg.com/news155836467.html Medicine & Health Mon, 09 Mar 2009 16:54:58 EST news155836467 Chronic stress takes a physical and emotional toll on our bodies and scientists are working on piecing together a medical puzzle to understand how we respond to stress at the cellular level in the brain. Being able to quickly and successfully respond to stress is essential for survival. http://www.physorg.com/news155227502.html Medicine & Health Mon, 02 Mar 2009 14:45:28 EST news155227502 Whenever humans create a new antibiotic, deadly bacteria can counter it by turning into new, indestructible super-bugs. That's why bacterial infection is the number one killer in hospitals today. But new research from Tel Aviv University may give drug developers the upper hand in outsmarting bacteria once and for all. http://www.physorg.com/news152803882.html Chemistry Mon, 02 Feb 2009 13:31:55 EST news152803882 Canadian researchers have, for the first time, developed an organic substance that attracts and supports cells necessary for tissue repair and can be directly injected into problem areas. This development, published online in the FASEB Journal, is a major step toward treatments that allow people to more fully recover from injury and disease and may even help reduce the need for organ transplantation. http://www.physorg.com/news150977056.html Medicine & Health Mon, 12 Jan 2009 10:04:16 EST news150977056 (PhysOrg.com) -- An ‘honest indicator` has been discovered by a scientific team at Arizona State University that reveals reproductive cheating. But before you run out to buy an infidelity identification kit, know that it only works for ants. http://www.physorg.com/news150731854.html Biology Fri, 09 Jan 2009 13:57:34 EST news150731854