Sedentariness is a behavior characterized primarily by sitting, with associated low levels of energy expenditure. Sedentariness is distinct from lack of moderate-to-vigorous physical activity because the former refers to too much sitting rather to too little exercise. In fact, high sedentariness and substantial physical activity may coexist because it is possible for an individual to meet or surpass the recommendations for minimum physical activity and to spend most of the rest of the day seated, either at work, during transportation, or at home.
It is important to note that this study draws a direct link between Sedentariness and increased individual mortality. Conversely there is also a link between activity and lowered mortality rates.