In a February 2013 survey of 63,048 middle-aged Australian men, those who sat for more than four hours a day were significantly more likely to have a chronic disease like high blood pressure, heart disease, diabetes and cancer, regardless of their BMI or amount of exercise.
Analyzing self-reported data from more than 222,000 people aged 45 and older, Australian researchers found that mortality risks spike after 11 hours of total daily sitting. but are still 15 percent higher for those sitting between 8 and 11 hours compared to those sitting fewer than 4 hours per day. People who sat more than 11 hours a day had a 40 percent higher risk of dying within three years.
Association of Sedentary Behaviour with Metabolic Syndrome: A Meta-Analysis
Ten cross-sectional studies (n = 21393 participants), one high, four moderate and five poor quality, were identified. Greater time spent sedentary increased the odds of metabolic syndrome by 73% (OR 1.73, 95% CI 1.55–1.94, p