Here we go again: The "study of the day". This article states: A sweeping review of shifts in the labor force since 1960 suggests that a sizable portion of the national weight gain can be explained by declining physical activity during the workday.

Here's the thing: Of course, we're less active in the workplace. Most, not all, people sit in front of a computer for much of the day. We need a study to tell us the obvious? 

We've known this for a long time. That's why there have been tips like  this: Use the stairs, park far away from the office, get up during the day and move.

Here's the article in the New York Times.

Here's my prediction: Studies like this will be used to sell workstation treadmills.