Sport and fitness

Research Mounts Showing Vitamin D’s Health Benefits

Lynne Kiesling Over the past year or so I’ve been following the debate and research on Vitamin D intake. Initially Vitamin D supplementation was recommended simply to reduce the incidence of rickets in children, but increasingly Vitamin D is associated with a wide range of health benefits, from reducing fatigue to improving metabolism to improving …

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Roads and Paths As Common-pool Resources, and the Problem of Governing Them

Lynne Kiesling Yesterday at Reason’s Hit & Run Tim Cavanaugh wrote about something that I’ve been thinking about for a long time: the institutions we use for governing the shared use of paths between cyclists and motorists on roads, and among cyclists, walkers, runners, rollerbladers, etc. on multi-use paths. Tim’s starting point was Christopher Beam’s …

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Did Prediction Markets Miss the Call on Chicago’s Olympic Bid?

Michael Giberson The IOC recently selected Rio de Janerio over three competing bids to host the 2016 summer Olympic games.  The Chicago bid was favored in public prediction markets, with prices at Intrade between 50 and 60 at the time of decision and prices at Betfair implying about a 50 percent chance.  Did the prediction …

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Is Bicycling “Bad to the Bone”?

Michael Giberson Research studying competitive cyclists suggests that cycling can reduce bone density. … most recreational cyclists probably don’t need to worry too much about their bones. “The studies to date have looked primarily at racers,” [researcher Aaron] Smathers says. “That’s a very specialized demographic. These guys train for hours at a very high intensity. …

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