The brain has two systems for thinking about the thoughts of others

In order to understand what another person thinks and how he or she will behave, people must adopt someone else’s perspective. This ability is referred to as “theory of mind.” Until recently, researchers were at odds concerning the age at which children are able to do such perspective-taking. Scientists at the Max Planck Institute for Human Cognitive and Brain Sciences (MPI CBS), University College London, and the Social Neuroscience Lab Berlin shed new light on this question in a study now published in the Proceedings of the National Academy of Sciences.
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Study: Women’s hormonal cycles do not affect preferences for men’s behavior

In the past, there has been much excitement over research that purported to show a link between changes in women’s cycle and their degree of sexual attraction. However, new research at the University of Göttingen using the largest sample size to date questions previous results. The new research shows that shifts in women’s cycles did not affect their preferences for men’s behavior. The researchers found, however, that when fertile, women found all men slightly more attractive and, irrespective of their hormone cycle, flirtier men were evaluated as being more attractive for sexual relationships but less attractive for long-term relationships. The results were published in Psychological Science
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Improving lifestyle habits may be useful additions to management of atrial fibrillation

Weight loss, regular physical activity and other lifestyle changes are effective yet underused strategies that should be added to optimize management of atrial fibrillation (an abnormal heart rhythm), according to “Lifestyle and Risk Factor Modification for Reduction of Atrial Fibrillation,” a new Scientific Statement from the American Heart Association published today in the Association’s flagship journal Circulation.
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