Sitting around too much in one's spare time appears to increase the risk of dying,regardless of physical activity, researchers found.
Among more than 120,000 adults, those who sat more than six hours a day in their leisure time were significantly more likely to die in a 14-year period than those who sat less than three hours (P<0.0001), According to Alpa Patel, PhD, of the American Cancer Society in Atlanta, and colleagues.
The association was stronger in women (RR 1.34, 95% CI 1.25 to 1.44)than in men (RR 1.17, 95% CI 1.11 to 1.24), the researchers reported online in the American Journal of Epidemiology.
The findings were independent of physical activity levels, body mass index, smoking, and several other factors contributing to mortality risk.
According to the researchers, sedentary time may be related to mortality risk because sitting may be associated with other unhealthy behaviors, like excessive eating. In addition, sitting too much could have adverse metabolic effects.
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