You’re reading this at your desk. You are slumped, as usual, over your keyboard. Your hand rests heavily on your mouse. Occasionally you twitch it to open a new tab or email.
The only other movement you make is the flickering of your eyes from webpage to webpage. And now, you learn, clicking on a headline and casting your eye down the article, that office workers - people like you - must exercise for an hour a day to counter the death risk of modern working lifestyles.