美国犹他州大学家庭和消费者行为学研究教授芭芭拉·布朗通过研究发现:老式的、便于行走的街道可以保持人们腰围的苗条。居住在老式街区中和那些人口密度高,需要走路去上班的这两类人体重最轻。她认为:老式街道的路面通常比较狭窄,有树荫遮挡 Barbara Brown, a professor of family and consumer behavior research at the University of Utah, found through research that the old, easy-to-walk streets can keep slim waistlines. Living in old-fashioned neighborhoods and those with the highest population density and the need to walk to work are the lightest people. In her opinion: the streets of the old-fashioned streets are usually narrower, shaded