Scientific studies have suggested associations between mercury and neurological disease. These studies justify avoiding unnecessary mercury exposure. For example, one epidemiologic study correlates systemic mercury levels with increased risk of idiopathic Parkinson’s Disease. John Pearlman, M.D., reported that a 50 year-old athletic female patient had mercury/silver fillings removed and suddenly developed permanent neurological impairment that was ultimately diagnosed as Parkinson’s disease. She is now confined to a wheelchair. Manufacturers of mercury/silver fillings warn that removal can be dangerous.