Sittingformorethanthreehoursadaycandecreaseaperson’slif...
问题详情：Sittingformorethanthreehoursadaycandecreaseaperson’slifeexpectancy(预期寿命)bytwoyears,evenifheorsheisphysicallyactiveandgetsridofdangeroushabitslikesmoking,accordingtoastudy.WatchingTVformor...