My children both had severe metabolic and detoxification problems - I dislike chelation immensely and do feel it can be extremely dangerous unless it is done by a doctor that knows what he is doing and keeps on top of the patient constantly to make sure the metals are actually moving out of the body and not just going from one place to another. The kidneys and liver need to be properly functioning to make sure this is happening. To say toxins don't cause autism is not correct. It is definitely one factor. I have a dozen medical tests that show the autism my children HAD was caused by the heavy metal poisonings. I was fortunate to find a doctor who believed in my son and daughter. He healed their systems so the metals can flow out naturally and they are both doing extremely well. My husband and I both had mercury poisoning so both children were infected in vitro. Mercury posioning causes severe metabolic problems which definitely caused my children severe neurological, emotional and physical deficits. You can have your opinion but children are getting better. Unless you are a parent who can not connect with your child you don't have a right to tell anyone anything. I mean no disrespect - but if you are going to tell people that toxins don't cause neurological problems I am going to have to call you on it.