Reduced Intelligence by Valerie Cheers Brown

The dangers of fluoridated water are very well documented these days. With side effects like dental fluorosis, reduced intelligence in children, and nervous system damage people are always looking for ways to reduce or even eliminate the fluoride commonly found in common tap water. Water purification systems that remove fluoride can get extremely expensive. What…

In a bulletin posted on the Harvard School of Public Health website, Grandjean notes that:

“Fluoride seems to fit in with lead, mercury, and other poisons that cause chemical brain drain. The effect of each toxicant may seem small, but the combined damage on a population scale can be serious, especially because the brain power of the next generation is crucial to all of us.”

How many more studies must be done before people realize what we are doing to ourselves over a period of time can be damaging our lives and immune system which the utmost of importance to good health and crucial 4 well-being and longevity of life?

Why ae so many people being diagnosed with cancer which society does not want to acknowledge in so many words is a degenerative disease caused from toxins which we ingest and exposed to and over a period of time become tumors!

In any case, a glance at the making and breaking of these notorieties uncovers the force of status, position, and picture to shape logical “information” and social strategy.

I am posting this article just as is because of the resource information with findings and evidence of the Fluoride Action Network so don’t say I am plagiarizing, cause I am letting you know I am posting as it is so that you can get the same exact finding as stated and noted to be accurate with citations:


Fluoride’s ability to damage the brain is one of the most active areas of fluoride research today. Over 300 studies have found that fluoride is a neurotoxin (a chemical that can damage the brain). This research includes:

  • Over 100 animal studies showing that prolonged exposure to varying levels of fluoride can damage the brain, particularly when coupled with an iodine deficiency, or aluminum excess;
  • 50 human studies linking moderately high fluoride exposures with reduced intelligence;
  • 45 animal studies reporting that mice or rats ingesting fluoride have an impaired capacity to learn and/or remember;
  • 12 studies (7 human, 5 animal) linking fluoride with neurobehavioral deficits (e.g., impaired visual-spatial organization);
  • 3 human studies linking fluoride exposure with impaired fetal brain development.

Based on this accumulating body of research, several prestigious reviews — including a report authored by the U.S. National Research Council, a meta-analysis published by a team of Harvard scientists, and a review published in The Lancet— have raised red flags about the potential for low levels of fluoride to harm brain development in some members of the population.

The NRC Review (2006)

In 2006, the National Research Council (NRC) stated that “it is apparent that fluorides have the ability to interfere with the functions of the brain.” In addition to calling for U.S.-based research on fluoride’s IQ effects, the NRC expressed concern about fluoride’s possible contribution to dementia. According to the NRC:

“Studies of populations exposed to different concentrations of fluoride should be undertaken to evaluate neurochemical changes that may be associated with dementia. Consideration should be given to assessing effects from chronic exposure, effects that might be delayed or occur late-in-life, and individual susceptibility.”

Harvard Review (2012)

In July of 2012, a team of Harvard researchers published a “meta-analysis” of 27 studies that have investigated the relationship between fluoride and human intelligence. (Choi 2012) The overwhelming majority of these studies found that fluoride exposure was associated with reduced IQ in children. In fact, 26 of the 27 studies that met the Harvard team’s inclusion criteria found a relationship between elevated fluoride and reduced IQ. The Harvard team thus concluded that fluoride’s effect on the developing brain of children should be a “high research priority” in countries like the U.S. where, despite mass fluoridation programs, no studies have yet been conducted to investigate the issue.

The Lancet Review (2014)

In March of 2014, the prestigious medical journal The Lancet published a review of “developmental neurotoxicity” which concluded that fluoride is one of only 11 chemicals that is known to damage the developing brain. Developmental neurotoxins are capable of causing widespread brain disorders such as autism, attention deficit hyperactivity disorder, learning disabilities, and other cognitive impairments.  The harm is often untreatable and permanent.

The authors of The Lancet review, which included Harvard scientist Philippe Grandjea, write:

“Our very great concern is that children worldwide are being exposed to unrecognized toxic chemicals that are silently eroding intelligence, disrupting behaviors, truncating future achievements, and damaging societies, perhaps most seriously in developing countries.”

    • Rat Studies Link Brain Cell Damage With Aluminum and Fluoride in Water

      The Wall Street Journal October 28, 1992 Rat Studies Link Brain Cell Damage With Aluminum and Fluoride in Water by Marilyn Chase Staff Reporter ANAHEIM, Calif. – A team of New York scientists said rat studies offer preliminary evidence that aluminum, when administered in drinking water, may be linked with behavior changes and damaged

    • Summary of 2011 Fluoride Research

      Evidence of fluoride’s detrimental effects on the brain and central nervous system continues to mount. At least four more studies finding a link between fluoride exposure and decreased intelligence (IQ) of children were published this year, putting the total number of such studies at 25.

    • Fluoride & the Brain

      The most recent Chinese study on fluoride & the brain was posted on PubMed just last week. The study looked at the effect of fluoride on the hippocampal region of rat brain, and concluded that: “Fluoride may go through the blood-brain barrier and accumulate in rat hippocampus, and inhibit the activity of cholinesterase.”


    • Fluoride & IQ: The 50 Studies

      As of September 2016, a total of 57 studies have investigated the relationship between fluoride and human intelligence, and over 40 studies have investigated the relationship fluoride and learning/memory in animals. Of these investigations, 50 of the 57 human studies have found that elevated fluoride exposure is associated with reduced IQ,

    • Fluoride’s Effect on Fetal Brain

      The human placenta does not prevent the passage of fluoride from a pregnant mother’s bloodstream to the fetus. As a result, a fetus can be harmed by fluoride ingested pregnancy. Based on research from China, the fetal brain is one of the organs susceptible to fluoride poisoning. As highlighted by the excerpts

    • Fluoride’s Neurobehavioral Effects in Humans & Animals

      In addition to studies linking fluoride to reduced IQ in humans, and impaired learning/memory in animals,  human and animal studies have also linked fluoride to a variety of other neurobehavioral effects. These studies, which are excerpted below, provide yet further evidence that fluoride is a neurotoxin. The importance of considering other


    • Fluoride & the Brain: An Interview with Dr. Phyllis Mullenix

      The following interview with Phyllis Mullenix took place on October 18, 1997.  The interviewer is Paul Connett. I. ACADEMIC BACKGROUND Connett: We’re talking with Dr. Phyllis Mullenix, who in 1995, published a very important work on the neurotoxic effects of fluoride in rat studies. And Phyllis would you begin by telling us your


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