"Those who think they have not time for bodily exercise will sooner or later have to find time for illness." -- Edward Stanley, Earl of Derby 1873
We continue to deny this idea despite more than a century of data. In the latest contribution to this argument, an Australian group put another nail in the coffin of the couch potato. They demonstrated that the amount of time we spend sitting correlates with all-cause mortality. For those who haven't been living under a rock, this is not news. However, what puts this study on the map is the finding that the negative effect of prolonged sitting was not significantly reversed by physical activity.