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. Taking dexamathasone prophlyactically may improve exercise capacity in some mountaineers, according to Swiss researchers. Dexamathasone, known popularly to climbers as "dex," has been used for years to treat altitude-related symptoms in mountaineers, but has never been tested for its ability to improve exercise capacity at high altitude. http://www.physorg.com/news169212677.html Medicine & Health Tue, 11 Aug 2009 12:50:04 EST news169212677 A higher density of blood vessels and other unique physiological features in the flight muscles of bar-headed geese allow them to do what even the most elite of human athletes struggle to accomplish - assert energy at high altitudes, according to a new UBC study. http://www.physorg.com/news168030246.html Biology Tue, 28 Jul 2009 23:10:01 EST news168030246 Exercise requires the integrated activity of every organ and tissue in the body, and understanding how these respond to the decreased oxygen levels present at moderate to high altitude is the focus of the current special issue of High Altitude Medicine & Biology, a peer-reviewed journal published by Mary Ann Liebert. http://www.physorg.com/news165514313.html Medicine & Health Tue, 30 Jun 2009 01:20:01 EST news165514313 (PhysOrg.com) -- A group of cockroaches recently took a ride on a high-altitude balloon launched into space by freshmen aerospace engineering students from the University of California, San Diego. The cockroaches were put in a variety of capsules to see how they would survive in different extreme environments, including cold temperatures (-40 degrees F), minimal atmosphere and high solar radiation. The capsules were first ground tested in a cold vacuum chamber to insure the chambers would survive the cold and near vacuum of space without bursting. The high-altitude balloon experiment came off without a hitch--all the cockroaches survived. http://www.physorg.com/news156101965.html Space & Earth Thu, 12 Mar 2009 18:40:49 EST news156101965 (PhysOrg.com) -- NASA and the National Science Foundation have successfully launched and demonstrated a newly designed super pressure balloon prototype that may enable a new era of high-altitude scientific research. The super-pressure balloon ultimately will carry large scientific experiments to the brink of space for 100 days or more. http://www.physorg.com/news150728447.html Space & Earth Fri, 09 Jan 2009 13:00:47 EST news150728447 The lowest ever levels of oxygen in humans have been reported in climbers on an expedition led by UCL (University College London) doctors. The world-first measurements of blood oxygen levels in climbers near the top of Mount Everest, published in this week's New England Journal of Medicine (NEJM), could eventually help critical care doctors to re-evaluate treatment strategies in some long-term patients with similarly low levels of blood oxygen. http://www.physorg.com/news150571554.html Medicine & Health Wed, 07 Jan 2009 17:25:54 EST news150571554