Heavy Metal Toxicity, Speech Problems and Children of Today The vast neurological symptoms that occur in children exposed to mercury and aluminum are: decreased eye contact, repeating certain actions over and over again, not responding to their name, not looking at an object that is being pointed at by another, poor concentration or attention and sensitivity to sensory stimulation. Common language or speech symptoms of mercury and aluminum poisoning: loss of speech, delayed speech, decreased und

Heavy Metals & Essential Elements Testing | ZRT Laboratory