Out of any job I would say that IMers are the most likely to get Faaaaat. We just sit around at our computers all day, some of us dont even leave the house for days on end.... <---- (me........)
I can say that since this year of university ended I've gained 10 pounds, which can be accounted for the loss of 45 min-1 hr of walking a day I did just getting from train-> campus and campus-> train every day.
This post is an inspiration