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. A new study from Indiana University suggests that even meager levels of physical activity can improve the mood of people with serious mental illnesses (SMI) such as bipolar disorder, major depression and schizophrenia. http://www.physorg.com/news151152020.html Medicine & Health Wed, 14 Jan 2009 10:40:20 EST news151152020