I would say that more than half of the people at my office eat lunch at their desks while working. They might go grab some food and then come back and eat it at their desks. I am one of those people, too. At least, I was one of those people until I started leaving work for lunch. I have worked for this company for almost 5 years so far and just now started to feel the need to take a break in the middle of the day.