But you have so much to do at work. Should you go in anyways? Here is a quick check to see if you’re OK to go in, or too sick to work. First, check your temperature. If you have a fever ...

"Some people do feel indispensable and irreplaceable at work. They don't want to miss a day," workplace psychologist Jennifer Newman told The Early Edition's Rick Cluff. "People who go in sick are ...