Health News
Date: Jan-18-2013
Epileptic seizures occur when neurons in the brain become excessively active. However, a new study from MIT neuroscientists suggests that some seizures may originate in non-neuronal cells known as glia, which were long believed to play a mere supporting role in brain function. In a study of fruit flies, the researchers identified a glial-cell mutation that makes the flies much more prone to epileptic seizures. Mutations in the gene, which influences glial cells' communication with neurons, appear to make neurons much more excitable...
Date: Jan-18-2013
Understanding the human brain is one of the greatest scientific quests of all time, but the available methods have been very limited until recently. The development of functional magnetic resonance imaging (fMRI) - a tool used to gauge real-time brain activity by measuring changes in blood flow - opened up an exciting new landscape for exploration. Now, twenty years after the first fMRI study was published, a group of distinguished psychological scientists reflect on the contributions fMRI has made to our understanding of human thought...
Date: Jan-18-2013
EcoHealth Alliance, a nonprofit organization that focuses on local conservation and global health issues, released new research on Ebola virus in fruit bats in the peer reviewed journal, Emerging Infectious Diseases, a monthly publication by the Centers for Disease Control and Prevention (CDC). The study found Ebola virus antibodies circulating in ~4% of the 276 bats scientists screened in Bangladesh. These results suggest that Rousettus fruit bats are a reservoir for Ebola, or a new Ebola-like virus in South Asia...
Date: Jan-18-2013
A new Mayo Clinic Proceedings study shows that people most often visit their health care providers because of skin issues, joint disorders and back pain. Findings may help researchers focus efforts to determine better ways to prevent and treat these conditions in large groups of people. "Much research already has focused on chronic conditions, which account for the majority of health care utilization and costs in middle-aged and older adults," says Jennifer St. Sauver, Ph.D...
Date: Jan-18-2013
Evidence is increasing from multiple scientific fields that exposure to the natural environment can improve human health. In a new study by the U.S. Forest Service, the presence of trees was associated with human health. For Geoffrey Donovan, a research forester at the Forest Service's Pacific Northwest Research Station, and his colleagues, the loss of 100 million trees in the eastern and midwestern United States was an unprecedented opportunity to study the impact of a major change in the natural environment on human health...
Date: Jan-18-2013
Researchers have found clear, identifiable factors that signal whether an athlete will experience concussive symptoms beyond one week. The researchers sought to identify risk factors for prolonged concussion symptoms by examining a large national database of high school athletes' injuries. Previous concussion studies were limited in scope, focusing only on male football players. The information from this study applies to male and female athletes from a number of different sports...
Date: Jan-18-2013
Obese and overweight people are gaining weight rapidly in low-and middle-income countries while those who are severely undernourished are not experiencing similar weight gains, according to a University of Toronto and Harvard School of Public Health study. This growing divide may force governments in the developing world to care for people who fall dramatically short on their calorie intake while simultaneously treating health problems associated with obesity, including diabetes and heart disease...
Date: Jan-18-2013
People suffering from chronic inflammatory conditions, such as rheumatoid arthritis, inflammatory bowel disease and asthma - in which psychological stress plays a major role - may benefit from mindfulness meditation techniques, according to a study by University of Wisconsin-Madison neuroscientists with the Center for Investigating Healthy Minds at the Waisman Center. Mindfulness-based stress reduction, originally designed for patients with chronic pain, consists of continuously focusing attention on the breath, bodily sensations and mental content while seated, walking or practicing yoga...
Date: Jan-18-2013
Since 1992 the number of deaths linked to breast cancer in Spain has decreased among young and middle aged patients but not among the elderly. Spanish researchers also predict that it will continue to decline over the next decade, although more slowly as observed up until now. A new study headed by a team of Spanish researchers has analysed breast cancer mortality in Spain among different age groups from 1981 to 2007, setting a valid prediction up until 2023...
Date: Jan-18-2013
Norwegian pregnant women who received a vaccine against the 2009 H1N1 influenza virus showed no increased risk of pregnancy loss, while pregnant women who experienced influenza during pregnancy had an increased risk of miscarriages and still births, a study has found. The study suggests that influenza infection may increase the risk of fetal loss. Scientists at the U.S. National Institutes of Health and the Norwegian Institute of Public Health (NIPH) published their findings online Jan. 17 in the New England Journal of Medicine...