I have been writing about the dangers playing American football due to the increasing number of reported cases of brain injury due to the repeated concussions that American football players experience, and argued that there are strong grounds for schools and colleges not fielding teams since educational institutions should not be encouraging young people to run the risks of permanent damage by seeming to endorse a dangerous activity. If as adults they want to play, there is little we can do except not support them.
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When I started out as a graduate student, I was a teaching assistant in a lab. Invariably in physics labs students are expected to measure some quantity multiple times and then take the average so as to minimize the effect of random uncertainties that are intrinsic to any measurement. I recall some students showing me a set of about six numbers and the average that they had calculated from it. They were amazed when I told them after a quick glance that the average was wrong.
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A new study suggests a link between ritual circumcision and the development of autism spectrum disorder (ASD). The suggested causal connection lies in the great pain that the infant suffers during the procedure.
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Via that excellent website Machines Like Us I came across this article by Anne Fishel that points to the benefits of having meals together with one’s children.

As a family therapist, I often have the impulse to tell families to go home and have dinner together rather than spending an hour with me. And 20 years of research in North America, Europe and Australia back up my enthusiasm for family dinners. It turns out that sitting down for a nightly meal is great for the brain, the body and the spirit.

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I am one of those people fortunate to be covered by an employer-based health insurance plan that pays for an annual physical exam and I regularly schedule one because it seems like a good preventative way of detecting early problems. So I was surprised by this article by Ezekiel J. Emanuel, an oncologist and a vice provost at the University of Pennsylvania, who says that large longitudinal studies show that routine annual physicals are of little value and his new year’s resolution is to stop having them.
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I would have thought that speaking about the importance of chance in life would be uncontroversial. My post a few days ago about a new study that was of interest not because the researchers showed the role of chance in getting cancer but that it was more significant than I would have guessed, being responsible about 2/3 of the time, with only 1/3 due to heredity and the environment, something we focus on a lot.
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Tara Culp-Ressler had an article about how those who are opposed to vaccinating their own children against measles are threatening the lives of other children.

California officials issued a health alert this week over a measles outbreak that appears to have originated at Disneyland theme parks. Nine cases of the highly contagious virus have been confirmed so far in people who recently visited the tourist destination — most of whom haven’t been vaccinated against measles.
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It turns out that there is a personality quiz consisting of 40 questions that can be answered in about five minutes that supposedly gives you a score that measures this characteristic in you. The test compilers say that a score between 12 and 15 is average, that celebrities often score closer to 18, and narcissists score over 20.
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