March 28, 2012 12:18
The more time you spend sitting down, the shorter your life, a study suggests. A team at the University of Sydney's School of Public Health led by Hidde van der Ploeg surveyed 222,000 Australians over 45 and found that those who spent over 11 hours a day sitting down were 40 percent more likely than those who spent less than four hours to die within three years for whatever reason.
Those who sit down for eight to 11 hours per day were 15 percent more likely to die soon than those who spend less than four hours.
The study took into account physical activity, weight and health conditions of respondents. Those who sit down the longest with the lowest level of physical activity were twice more likely to die within three years than the group who sit the fewest hours and had a high level of physical activity.
"The average adult spends 90 percent of their leisure time sitting down and less than half of adults meet World Health Organization physical activity recommendations," Ploeg said. Suzanne Steinbaum, a cardiologist and spokeswoman for the American Heart Association, said, "Yes, you have to work, but when you go home it's so important you don't go back to sitting in front of the computer or television. After the eight-hour mark, the risks go up exponentially."
The research was published in the Archives of Internal Medicine in the U.S.
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