Yes, but I was under the impression Vitamin C helped fight this shit too? 
I started hitting each body part twice a week, and I think that's what did it. I haven't been sick in a year and a half.
^^
Some people are really only cool with once a week body part stimulation, ESPECIALLY if you hit them hard...
Get enough sleep, and wash your hands more often... a LOT of people get sick from rubbing their eyes or picking their nose (two great viral transmission areas) after they've touched something infected/shaking hands with someone.
