I can definitely see how this could make people more sick, though I work in an open office and I rarely get sick, could be genetics or it could be that I eat food grown locally, work out and run every day and generally have alot of fun outside of work.

The human body NEEDS to get sick to build anti-bodies - without these then you will get sick more often. The American way of "Take antibiotics or medicine as soon as you get sick!" is one of the worst habits of my beloved American people (and fast food).