Active breaks can help us all avoid the harmful effects of sitting all day. Take an active break at least once an hour, and remember that an active break can be effective even if it is as short as a minute or two.
You might want to stand up for this: Sitting will kill you. You might say, "Joanne, that's old news. Where were you a few months ago when that was first reported?" My real answer is, "Sitting on my couch eating Thin Mints."
There's no question that regular exercise is essential to health. For the vast majority of our evolutionary history, we've had to exert ourselves -- often quite strenuously -- to get food, find shelter and simply survive.
Where do you fall on the sitting spectrum? This study classified low levels of sitting time as under three hours a day, moderate levels of sitting time as three to eight hours, and high levels of sitting as more than eight hours of sitting each day.