Numbness, tingling, brain fog, cardiovascular disease, and stroke can all be caused by Heavy Metal Toxicity. It is hard for the body to clear these toxins out, especially in older people. Heavy metal testing is very important to determine the source, and to have the treatments needed to clear the heavy metals out. Removing heavy metals may help your body systems to work better and reduce your risk of strokes and heart attacks as well as improve your quality of life.