For the vast majority of workers, the everyday office chair is just fine. With a few twirls and adjustments, most employees can make the standard equipment ergonomically sound. For the very tall and the very short among us, however, setting up an office environment is an exercise in making do.
People who sit all day are more likely to get cardiovascular disease and cancer than people whose jobs don't require them to gradually transform into a human letter C. Even working out an hour a day can't counteract the effects of sitting. So what can we do?