Hat Tip: Craig (thanks for this informative article)
Harvard School of Public Health: Impact of fluoride on neurological development in children http://www.hsph.harvard.edu/news/features/fluoride-childrens-health-grandjean-choi/
July 25, 2012 — For years health
experts have been unable to agree on whether fluoride in the drinking water may
be toxic to the developing human brain. Extremely high levels of fluoride are
known to cause neurotoxicity in adults, and negative impacts on memory and
learning have been reported in rodent studies, but little is known about the
substance’s impact on children’s neurodevelopment.
In a meta-analysis,
researchers from Harvard School of Public Health (HSPH) and China Medical
University in Shenyang for the first time combined 27 studies and found strong
indications that fluoride may adversely affect cognitive development in
children. Based on the findings, the authors say that this risk should not be
ignored, and that more research on fluoride’s impact on the developing brain is
warranted.
The study was published online in Environmental
Health Perspectives on July 20, 2012.
The researchers conducted a
systematic review of studies, almost all of which are from China where risks
from fluoride are well-established. Fluoride is a naturally occurring substance
in groundwater, and exposures to the chemical are increased in some parts of
China. Virtually no human studies in this field have been conducted in the
U.S., said lead author Anna Choi, research scientist in the Department
of Environmental Health at HSPH....
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