A new study says Americans are becoming increasingly sedentary. They spend almost a third of their waking hours sitting down, and computer use is partly to blame.
Over almost a decade, average daily sitting time increased by roughly an hour, to about eight hours for U.S. teens and almost 6 1/2 hours for adults, according to the researchers. That includes school and work hours, but leisure-time computer use among all ages increased too.
By 2016, at least half of American kids and adults spent an hour or more of leisure time daily using computers. The biggest increase was among the oldest adults: 15% of retirement-aged adults reported using computers that often in 2003-04, soaring to more than half in 2015-16.
Most Americans of all ages watched TV or videos for at least two hours daily and that was mostly unchanged throughout the study, ranging from about 60% of kids aged 5 to 11, up to 84% of seniors.