The myth of the eight-hour sleep Image copyright Other We often worry about lying awake in the middle of the night - but it could be good for you. A growing body of evidence from both science and history suggests that the eight-hour sleep may be unnatural. In the early 1990s, psychiatrist Thomas Wehr conducted an experiment in which a group of people were plunged into darkness for 14 hours every day for a month. It took some time for their sleep to regulate but by the fourth week the subjects had settled into a very distinct sleeping pattern. Though sleep scientists were impressed by the study, among the general public the idea that we must sleep for eight consecutive hours persists. In 2001, historian Roger Ekirch of Virginia Tech published a seminal paper, drawn from 16 years of research, revealing a wealth of historical evidence that humans used to sleep in two distinct chunks. Image copyright bbc "It's not just the number of references - it is the way they refer to it, as if it was common knowledge," Ekirch says.
Data-Business.fr Building the health information infrastructure for the modern epatient To learn more about what levers the government is pulling to catalyze innovation in the healthcare system, I turned to Dr. Farzad Mostashari (@Farzad_ONC). As the National Coordinator for Health IT, Mostashari is one of the most important public officials entrusted with improving the nation’s healthcare system through smarter use of technology. Mostashari, a public-health informatics specialist, was named ONC chief in April 2011, replacing Dr. I talked to Mostashari on the same day that he published a look back over 2011, which he hailed as a year of momentous progress in health information technology. What excites you about your work? Farzad Mostashari: Well, it’s a really fun job. These three streams [how patients are cared for, how care is paid for, and how people take care of their own health] coming together feels great. How does what’s happening today grow out of the passage of the Health Information Technology for Economic and Clinical Health Act (HITECH) Act in 2009? Related:
Guide du Big Data pour les Nuls : ce que vous devez savoir l Data-Business.fr [shareaholic app= »share_buttons » id= »6625901″] Grâce au Big Data les données de l’entreprise deviennent un actif stratégique, un outil de création de valeur, et donnent naissance à un nouveau paradigme d’organisation. Cet article sur le Big Data pour les Nuls est tiré du Livre Blanc élaboré par Big Data Paris, initialement paru sur le site Big Data Paris. Cet article en résume les principaux chiffres, donne quelques exemples d’applications et des études de cas du Big Data en entreprise et présente quelques acteurs du marché. Télécharger le livre blanc Définition et chiffres clés du Big Data A partir de la définition originelle orientée technologie, les fameux 3V – « un grand Volume de données, une importante Variété de ces mêmes données et une Vitesse de traitement qui s’apparente à du temps réel » (lire l’article détaillé sur la définition des 3V du Big Data), le Big Data s’est doté de dimensions supplémentaires, telles que la Valeur économique et la Véracité des données.
Beating Food Addiction & Sugar Addiction: Ideas from Dr. Hyman WE ARE ALL PROGRAMMED TO LIKE SUGAR. New research shows some are genetically much more prone to sugar and food addiction than others. I have observed this in my patients, but now it is becoming clear why some have more trouble kicking the sugar habit than others. As I reviewed in my previous article on food addiction, the science demonstrating that people can be biologically addicted to sugar in the same way we can be addicted to heroin, cocaine or nicotine is clear. It seems that we all vary a bit in our capacity for pleasure. We often see these as moral failures or results of character defects. Despite being stuck with the sugar addiction low pleasure gene, you may be able to modify its activity by modulating your brain chemistry and receptor function with the use of specific nutrients … The Genetics of Pleasure In our brain, a little receptor, the dopamine receptor D2 (or DRD2 for short), must be activated or switched on for us to feel pleasure. Overcoming Your Addiction to Sugar 1. 2.
J'ai du bon data - Blog du Monde.fr Study of the Day: Blood Tests Can Accurately Diagnose Depression - Hans Villarica - Health New research shows that blood screenings can accurately spot multiple telltale biomarkers in patients with classic symptoms of depression. PROBLEM: Depression has traditionally been diagnosed with a questionnaire that assesses patients' reported symptoms. This process varies greatly, however, since it relies heavily on the clinician's experience and resources. METHODOLOGY: To test if an objective biological test could improve diagnosis accuracy, scientists recruited 36 adults with major depression and 43 healthy participants for a blood screening. They measured the levels of nine biomarkers associated with depressive symptoms, such as inflammation, the development and maintenance of neurons, and the interaction between brain structures involved with stress response and other key functions. RESULTS: The blood test indicated the presence of depression in 33 of the 36 patients and registered false positives for eight of the 43 participants in the control group. Image: Themalni/Shutterstock.
Data Publica Un article de Wikipédia, l'encyclopédie libre. Mission[modifier | modifier le code] Data Publica est une entreprise française qui propose différents services sur le marché de la donnée : une offre B2B de vente prédictive (C-Radar), un portail de données publiques[1] (OpenData), un service de données sur mesure, un service de visualisation de données[2], des Tableaux de Bord des Territoires, ainsi qu'une rubrique d'actualité des données[3]. Cofinancée en septembre 2011 par des business angels et le fonds d'investissement de l'INRIA, It Translation[4], Data Publica est également un éditeur de données qui construit des jeux de données sur mesure et aide les sociétés à créer, structurer et enrichir avec des données publiques des flux de données hétérogènes. En janvier 2014, Data Publica a lancé l'offre C-Radar, la première offre de vente prédictive en France, destinée aux entreprises du B2B. Origines[modifier | modifier le code] Catalogue de données publiques[modifier | modifier le code]
Abolish the Food Industry - Raj Patel - Health If public health is a legitimate reason to curb corporations' advertising to kids, why limit bans to cigarettes, booze, and toys in happy meals, and not include, say, all unhealthy food? In the fall of 2008, San Francisco polished its progressive credentials by banning something. From October 1, 2008, the sale of cigarettes was prohibited in certain places. You could still buy them in convenience stores, of course, and bodegas, gas stations, and even the occasional bar. Pharmacy and tobacco executives were apoplectic. The cigarette industry survives, as does its advertising. Alcohol is similarly circumscribed, again with an eye to public health and, again, with a particular concern for young people. A paper in the latest issue of Nature by Robert Lustig, Laura Schmidt, and Claire Brindis fuels the debate, pointing to the long-term similarities of sugar and alcohol consumption. The paper's authors freely admit that a little sugar is fine, but "a lot kills -- slowly."