On Talk of the Nation today, the topic was American obesity. As you may note on my Issues page, I mention sprawl as being extraordinarily complex - well today's show included some research that indicated that after you filter for other factors (age, gender, education level) you end up with sprawl resulting in a +6 lbs swing on average. Seems you spread everything out, and noone walks anywhere - we sit on our hind ends in cars. Exercise is good, sprawl discourages it. Weight gain has wide ranging personal and societal impact, sprawl encourages it.
Like we needed another reason to see it as a problem.
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