31 OCT 2018 by ideonexus
Exercise Meaningful in Having Good Mental Health
In this cross-sectional study, we analysed data from 1 237 194 people aged 18 years or older in the USA from the 2011, 2013, and 2015 Centers for Disease Control and Prevention Behavioral Risk Factors Surveillance System survey. We compared the number of days of bad self-reported mental health between individuals who exercised and those who did not, using an exact non-parametric matching procedure to balance the two groups in terms of age, race, gender, marital status, income, education l...10 FEB 2018 by ideonexus
The Volumetric Approach to History
You will be thinking that we are coming to the end of this book: we’ve dealt with eight centuries, so there are only two to go. You may be surprised to learn, therefore, that in historical terms we are not even halfway. The reason for this discrepancy is that history is not time, and time is not history. History is not the study of the past per se; it is about people in the past. Time, separated from humanity, is purely a matter for scientists and star-gazers. If a previously unknown uninha...12 DEC 2017 by ideonexus