The science seems crystal clear on this one: to live a longer life, you have to get off your behind. The most recent data on the subject shows that replacing 30 minutes of sitting time each day with moderate to vigorous exercise is associated with a 45 percent lower risk of death. People who did so were also more likely to be thinner, more educated, and less likely to smoke. As a result, they suffered from fewer strokes, heart attacks and early deaths. Even doing a light workout was linked to 14 percent drop in death risk compared to sitting around for the same time.

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