1. Junk food-Being malnourished weakens your immune system. It contains excess fats, sugars and kills around 310,000-580,000 people each year!
2. PCB's-stay away from unnecessary toxins like cigarette smoke, illicit drugs, excess alcohol, and also pesticide treated plants. 
3. Avoid sleep deprivation-not getting enough sleep causes you to lose killer cells that fight off germs. 
4. Don't get too Stressed out-some things can't be avoided like loss of a job, death of a spouse or marital separation.
5. Be Optimistic
6. Avoid Sedentary Lifestyles-Exercise!
7. Avoid Social Isolation
8. Stop Smoking
9. Arming yourself against too many antibiotics
10. Laugh to avoid stress

Another thing to remember is to keep your house as clean as possible.  Most of us don't notice when it starts to get dusty, our cats/dogs need baths, bedsheets need to get changed, all of these things may increase allergies and lower your hygiene.  Another thing is to always stay hydrated with water and juices!

I think sleep deprivation effects my immune system greatly! I pull all nighters every once in a while just for fun. Either if a friend spends the night or something exciting is going on or if I just don't feel like sleeping. Well every time I end up doing that I get sick the next day! It really never fails with me!

Also drinking alcohol and being hung over is the worst!  Alcohol dehydrates you and depletes all of the vitamins in your body.  Not good at all!

A high fiber diet can wreck your immune system but within a week can boost it so that it was much better than before.  The high fiber content in the body gets rid of all of the excess, old nutrients and replaces them, ultimately making us much healthier. 

Foods that Boost your immune system-- Sweet potatoes, spinach, mushrooms, tea, Antioxidants take care of free radicals which can damage your DNA (Aka Cancer), and also help out with aging. 

Oranges!! they boost up your immune system tremendously!

Given your immune system's role as protector against illness, you want to do
all you can to give it a boost. What works best to boost immunity -- and what
doesn't? How can you keep your immune system in top shape? Separate myth from
fact about your immune system.

Edit:

Given your immune system's role as protector against illness, you want to do
all you can to give it a boost. What works best to boost immunity -- and what
doesn't? How can you keep your immune system in top shape? Separate myth from
fact about your immune system.

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