Forty-five years later, in 2010, things had changed dramatically. By then, the time-use diaries showed, women were spending an average of 13.3 hours per week on housework.
45年后,也就是2010年,情况有了显著变化。上述日记显示,到2010年,美国女性花在家务上的时间平均为每周13.3小时。
More striking, the diary entries showed, women at home were now spending far more hours sitting in front of a screen. In 1965, women typically had spent about eight hours a week sitting and watching television. (Home computers weren’t invented yet.)
更引人注目的是,在这些日记中,家庭主妇坐在电视或电脑前的时间大幅上升。1965年,美国女性每周看电视的时间通常为八小时左右(当时还没有出现家用电脑)。
By 2010, those hours had more than doubled, to 16.5 hours per week. In essence, women had exchanged time spent in active pursuits, like vacuuming, for time spent being sedentary.
到了2010年,这个数字提高了一倍以上,达到每周16.5小时。实际上,美国女性压缩了用在清扫等动态行为上的时间,而延长了静坐不动的时间。
In the process, they had also greatly reduced the number of calories that they typically expended during their hours at home. According to the authors’ calculations, American women not employed outside the home were burning about 360 fewer calories every day in 2010 than they had in 1965, with working women burning about 132 fewer calories at home each day in 2010 than in 1965.
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