How much walking can reverse the health risks of sitting for 8 hours a day? Doctor explains what your body needs

A desk, a chair, a laptop and several hours can turn into most of the working day. For many people, sitting for eight hours is now routine. The problem is not sitting itself, but spending long stretches barely moving.Prolonged sedentary time has been linked with higher risks of heart disease, type 2 diabetes, obesity and premature death. The good news is that movement does not have to mean spending an hour in a gym. A brisk walk, a few minutes away from the chair and more movement spread across the day can all help.