Lead linked to aging in older brains

Could it be that the "natural" mental decline that afflicts many older people is related to how much lead they absorbed decades before? That's the provocative idea emerging from some recent studies, part of a broader area of new research that suggests some pollutants can cause harm that shows up only years after someone is exposed.

The new work suggests long-ago lead exposure can make an aging person's brain work as if it's five years older than it really is. If that's verified by more research, it means that sharp cuts in environmental lead levels more than 20 years ago didn't stop its widespread effects.

... in recent years, scientists are coming to appreciate that exposure to other pollutants in early life also may promote disease much later on.

The big reason for the drop: the phasing out of lead in gasoline from 1976 to 1991. Because of that and accompanying measures, the average lead level in the blood of American adults fell 30 percent by 1980 and about 80 percent by 1990.

http://news.yahoo.com/s/ap/20080127/ap_on_he_me/aging_brain

A study by The National Academy of Sciences found that in the 1990s over 50% of U.S. pregnancies resulted in birth defects on chronic conditions such as autism, ADHD, learning disabilities, eczema, diabetes, asthma, etc.
It has been documented that the majority of these health effects are caused by prenatal and neonatal toxic exposures, to such as mercury, lead, arsenic, cadmium, aluminum, antimony, nickel, etc. Also pesticides and organochlorine compounds, organophosphates, and other endocrine disrupting substances.

But according to DOH ASTDR/EPA 7 of the top 10 toxics causing large amounts of health harm are toxic metals with mercury, lead, and arsenic being the top 3, affecting millions.

Modern amalgam fillings have high copper levels replacing silver, which has resulted in the average person with amalgam having mercury levels 10 times that of those without, and amalgam in Mom's fillings being a major source of mercury in the fetus, and infants, and also resulting in dental mercury fillings(50% mercury) being the largest source of mercury in sewers due to these huge exposures, with the average person excreting into sewers approx. 30 micrograms per day. This also makes individuals highly toxic, and susceptible to chronic health problems but results in high levels in water bodies, fish, etc. -over 30% of U.S. water bodies have mercury health warnings. www.flcv.com/damspr1.html see Doctors Data lab documentation cited




Due to the huge increase in toxic exposures during the 1990s due to the increase in vaccinations containing high levels of mercury and aluminum, and to antimony from ScotchGuard in childrens pajamas and bed clothes, and arsenic in treated wood on playgrounds, etc. there has been a huge increase in childrens neurological conditions such as ADHD, autism, learning disabilities, mood disorders, dyslexia. The primary cause has been documented to be this huge increas in toxic metals exposures as documented in:

www.flcv.com/tmlbn.html
www.flcv.com/kidshg.html
www.flcv.com/fetaln.html

:headbang: