Don't just sit there. Do something -- at least for two minutes every hour.

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Research shows that sitting for extended periods raises the risk of cardiovascular disease, diabetes, cancer and other ailments. But if you make sure to get up at least once an hour, even if it's just for an aimless stroll around your home or office, you might be able to lower your risk of death.

A study from the University of Utah School of Medicine found that people who broke up periods of sitting with a two-minute light walk each hour had a 33 percent lower risk of dying than those who continued sitting. Those short walks also added up to burn calories and keep you in better shape. The researchers noted that breaking up an extended period of sitting by just standing did not confer health benefits. You actually have to get up and walk.