Ageing with attitude: Taking a stand against sitting down all day

“STAND UP! By now you know that sitting down is slowly killing you and we want to help you live longer.”
If that statement made you sit up, then that’s a start, at least. It’s the wording of an introduction to Stand Up, just one of the many apps developed to remind us to get up and move at regular intervals, if we want to stave off an early death.