http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Marital conflict is a significant source of environmental stress for children, and witnessing such conflict may harm children's stress response systems which, in turn, may affect their mental and intellectual development. http://medicalxpress.com/news/2013-03-marital-conflict-stress-children-affect.html Psychology & Psychiatry Thu, 28 Mar 2013 00:00:03 EST news283629816 A new study published online in PLOS ONE reveals that primitive human stem cells are resistant to human cytomegalovirus (HCMV), one of the leading prenatal causes of congenital intellectual disability, deafness and deformities worldwide. Researchers from the University of Pittsburgh School of Medicine found that as stem cells and other primitive cells mature into neurons, they become more susceptible to HCMV, which could allow them to find effective treatments for the virus and to prevent its potentially devastating consequences. http://medicalxpress.com/news/2012-11-virus-developmental-deafness-treatment.html Medical research Wed, 28 Nov 2012 13:38:34 EST news273332302 Human intelligence and behavior require optimal functioning of a large number of genes, which requires enormous evolutionary pressures to maintain. A provocative hypothesis published in a recent set of Science and Society pieces published in the Cell Press journal Trends in Genetics suggests that we are losing our intellectual and emotional capabilities because the intricate web of genes endowing us with our brain power is particularly susceptible to mutations and that these mutations are not being selected against in our modern society. http://medicalxpress.com/news/2012-11-humans-slowly-surely-intellectual-emotional.html Genetics Mon, 12 Nov 2012 12:00:04 EST news271942686 IQ, the standard measure of intelligence, can increase or fall significantly during our teenage years, according to research funded by the Wellcome Trust, and these changes are associated with changes to the structure of our brains. The findings may have implications for testing and streaming of children during their school years. http://medicalxpress.com/news/2011-10-iq-fall-significantly-adolescence-brain.html Neuroscience Wed, 19 Oct 2011 13:00:13 EST news238247580 Recently the number of genes known to be associated with Alzheimer's disease has increased from four to eight, including the MS4A gene cluster on chromosome 11. New research published in BioMed Central's open access journal Genome Medicine has expanded on this using a genome-wide association study (GWAS) to find a novel location within the MS4A gene cluster which is associated with Alzheimer's disease. http://medicalxpress.com/news/2011-05-arrowing-alzheimer-disease.html Diseases, Conditions, Syndromes Mon, 30 May 2011 20:00:01 EST news225989036