At the top of this page, you can see the first page of this document. It allows you to see that the document will give you the symptoms of mercury toxicity according to the body systems it affects. Notice the above page depicts the affects of high levels of mercury on the central nervous system. To the right, under the "Sources" column, you see a list of foods and a list of non-food sources of mercury exposure. This lets you examine your life and know where you might be exposing yourself to mercury.