Systems Series: Immune System Immune system is one we don't really see or feel working-but we're glad it does! And, its one of those systems we all start to think about right about the time school starts--EEK! Of course, even with a fantastically healthy immune system, we will still get sick on occasion. But you shouldn't get sick a lot frown emoticon Healthy bodies and healthy immune systems keep us "healthy" most of the time! There are so many things that play into a healthy immune system, we can't discuss them all. But lets start with a big one--the GUT. Did you know that a healthy gut actually makes up about 80% of your immune system? Partly because many of the germs we are exposed to come through our mouth, and partly because when the gut is out of balance it just affects EVERYTHING else! So we already talked about the Digestive system, you can go back and read it again, but any time that we have unbalanced digestions, unbalanced "bugs...