i have only really been sick once in the last 3 years (I have been smoking for just over 2 years now); which could be due to smoking I guess. I also see a chiropractor at least once a month so that keeps my body healthy and my immune system working at top notch.

ps: the time that I did get sick, was just after getting the flu shot. go figure. they say it won't give you the flu, but you will get "flu-like symptoms"!!! What the hell...they feel exactly the same to me.