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Putting A Name To A Face May Be Key To Brain's Facial Expertise
Our tendency to see people and faces as individuals may explain why we are such experts at recognizing them, new research indicates. This approach can be learned and applied to other objects as well.
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Racial Disparities In Breast Cancer Mortality Are Not Driven By Estrogen Receptor Status Alone
Black women who are diagnosed with breast cancer have a higher probability of dying from the disease than white women, regardless of their estrogen receptor status, according to research from the National Cancer Institute (NCI), part of the National Institutes of Health. Differences in breast cancer mortality may reflect racial differences in access and response to innovative breast cancer treatments, as well as other biological and non-biological factors, according to the report. In addition, the researchers found that differences in outcomes in the first few years post-diagnosis make up nearly all of the disparity. These results were published online July 7, 2009 in the Journal of the National Cancer Institute.
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Local Food Environments Can Lead To Obesity

Living in an area with more fast food outlets and convenience stores than supermarkets and grocers has been associated with obesity in a Canadian study. Researchers writing in the open access journal BMC Public Health have shown that your local food environment can affect your weight. John Spence from the University of Alberta, Canada, worked with a team of researchers to study associations between the "Retail Food Environment Index" (RFEI) and levels of obesity. He said, "The RFEI is based upon a ratio of the number of fast-food restaurants and convenience stores to supermarkets and specialty food stores in a given radius around a person"s house. We"ve shown that it correlates very well with the odds that that person may be obese". The availability of fast food and scarcity of outlets for natural ingredients within 800m of a person"s home was shown to be associated with weight, while the RFEI within a 1600m radius did not have the same effect. The researchers claim that this demonstrates that the proximity of the unhealthy environment is an important risk factor for obesity. According to Spence, "These findings may help explain the observation that geographic concentration of fast-food restaurants is associated with mortality and hospital admissions for acute coronary events in Canada". Fast-food is cheaper and more energy-dense per measure of weight than other healthier foods such as fruits and vegetables that are purchased in a grocery store. If governments want to reduce people"s intake of these energy-efficient, but ultimately unhealthy "meals", the authors recommend that they intervene to limit the creation of areas where tempting junk-food outlets are so much more prevalent than other shops. They write, "A plausible policy option for decreasing the prevalence of obesity among adults is improving the retail food environment, possibly through zoning by-laws". Notes: Relation between local food environments and obesity among adults John C Spence, Nicoleta Cutumisu, Joy Edwards, Kim D Raine and Karen Smoyer-Tomic BMC Public Health (in press) Article available at journal website. All articles are available free of charge, according to BioMed Central"s open access policy. BMC Public Health is an open access journal publishing original peer-reviewed research articles in all aspects of epidemiology and public health medicine. BMC Public Health (ISSN 1471-2458) is indexed/tracked/covered by PubMed, MEDLINE, CAS, Scopus, EMBASE, Thomson Scientific (ISI) and Google Scholar. Graeme Baldwin BioMed Central


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