Thanks to David Kanigan for finding and sharing this:

“…New research this month finds that the more time someone spends sitting, the shorter and less robust his or her life may be. The findings were sobering: Every single hour of television watched after the age of 25 reduces the viewer’s life expectancy by 21.8 minutes. By comparison, smoking a single cigarette reduces life expectancy by about 11 minutes. Looking more broadly, they concluded that an adult who spends an average of six hours a day watching TV over the course of a lifetime can expect to live 4.8 years fewer than a person who does not watch TV.  Those results hold true even for people who exercise regularly. It appears a person who does a lot of exercise but watches six hours of TV every night might have a similar mortality risk as someone who does not exercise and watches no TV…”The researchers found that those people with the “highest sedentary behavior,” meaning those who sat the most, had a 112 percent increase in their relative risk of developing diabetes; a 147 percent increase in their risk for cardiovascular disease; and a 49 percent greater risk of dying prematurely — even if they regularly exercised.

“We might convince ourselves that we are not at risk of disease because we manage the recommended 30 minutes of exercise a day.” But, she says, we “are still at risk if we sit all day…If you exercise for 30 minutes a day, she says, “take time to reflect on your activity levels for the remaining 23.5 hours,” and aim to “be active, sit less.” via Get Up. Get Out. Don’t Sit. – Lead.Learn.Live..