The lure of computers means Americans are sitting more than before

Despite the growing alarm about the harmful effects of sitting too much, Americans are sitting more than in the past — in part because people are spending more leisure time in front of the computers.
The association between lots of sitting and bad health is now well-established, but there hasn’t been a lot of data on how sedentary Americans actually are, says Yin Cao, a cancer epidemiologist at Washington University in St. Louis and co-author of a study published today in the Journal of the American Medical Association. By analyzing data from the National Health Nutrition Examination Survey, Cao and her team found that, for both adults and teens, the total time sitting increased by about an hour per day from 2007 to 2016 (from about 6.4…

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