Earlier this year I shared data related to the link between too much sitting and overweight and obesity. There are concerns that Americans (as well as many from other countries, as well) are becoming an overweight and obese population that is doing too much sitting. A couple interesting studies have been reported since then. Turns out that too much sitting is linked with more than overweight and obesity. It is being linked with longevity, as well. In the first study, researchers wanted to evaluate the impact of replacing sedentary behavior with low-intensity activity (e.g., standing) versus light-intensity activities (e.g., walking). They analyzed data from 3243 participants in the US National Health and Nutrition Examination Survey. The study participants were followed for three years. Study conclusions were published in the Clinical Journal of the American Society of Nephrology and provide some helpful guidelines. More tomorrow.