I can safely say that in my adult life I have never had a flu shot and also have never had the flu. I think eating well, getting excercise and overall practicing a healthy lifestyle is a much better preventative measure than any mercury and aluminum laced shot could be. What do you think the build up of these chemicals is doing to your body over time? I would rather have the flu one time than suffer long term effects such as Alzheimer's from a flu shot.