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Thread: Neuroscience journal confirms adverse effects of fluoride on brain development

  1. #1

    Neuroscience journal confirms adverse effects of fluoride on brain development

    (NaturalNews) Fluoride is commonly found in tap water thanks to a process called fluoridation – which the U.S. government has been repeatedly telling us is a safe and effective way to protect teeth from decay, according to Global Research.

    But a recent study published in The Lancet, the world's most renowned medical journal, has actually classified fluoride as a neurotoxin – something which has a negative impact on brain development – alongside other extremely toxic compounds such as arsenic, lead and mercury.

    A large number of cities within the U.S. are pumping their drinking water systems full of fluoride, and the government is claiming that there are no health risks to this unnecessary practice.

    Why is fluoride added to water?

    Fluoride is added to water because of an outdated notion that it prevents dental decay, according to Scientific American. If applied frequently in low concentrations, the U.S. is being led to believe that it increases the rate of growth and size of tooth enamel – which helps to reverse the formation of small cavities.

    But, modern studies show that dental decay rates are so low in the U.S. that the effects of water fluoridation cannot actually be measured. This means that the benefit of water fluoridation is not clinically relevant, according to Fluoride Alert.

    There are many safer ways to provide fluoride for your teeth if they are deficient. In fact, there is a very easy one time gel treatment that takes only 15 minutes and lasts a lifetime, according to Ye Olde Journalist. Teenagers and young adults that have dental fluoride deficiency can easily be tested – although it is likely that their dentist will have noticed the problem and already suggested ways to improve the condition.

    What little benefit fluoridated water might actually provide comes entirely through its topical application – meaning that fluoride does not need to be swallowed to benefit teeth, as reported by Fluoride Alert.

    So what are the dangers of drinking fluoride?

    Fluoride is an industrial-grade chemical that is commonly contaminated with trace amounts of toxic heavy metals – such as lead, arsenic and radium. These trace elements accumulate in our bodies over time, and are associated with causing cancer, among other health complications, according to Fluoride Alert.

    Toothpaste labels commonly contain warnings regarding the dangers of swallowing too much toothpaste at one time; this is due to its fluoride content. Meanwhile, fluoridation isn't actually a common practice in Europe, with countries such as Austria, Belgium, Finland, Germany, Denmark, Sweden, Norway and The Netherlands opting out of adding fluoride to drinking water, according to Alt Health Works.

    As noted in the latest study, published in The Lancet, and reported on by Ye Olde Journalist, "A systematic review identified five different similar industrial chemicals as developmental neurotoxicants: lead, methylmercury ... arsenic and toluene ... Six additional developmental neurotoxicants have also now been identified: manganese, fluoride ..." The study notes that neurodevelopmental disabilities, including attention-deficit hyperactivity disorder, dyslexia and other cognitive impairments, are now affecting millions of children worldwide – a "pandemic of developmental neurotoxicity."

    Over recent years, more and more people have joined the movement to remove industrial fluoride from the world's water supply, thanks to an increased awareness of the dangers to human health caused by drinking this toxin for a prolonged period of time. If you are concerned about the amount of fluoride you are putting into your body, you can switch to fluoride-free toothpastes and help spread awareness about the dangers of fluoridation.



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  3. #2
    Wait for it.....in before....
    "Liberty lies in the hearts of men and women; when it dies there, no constitution, no law, no court can save it; no constitution, no law, no court can even do much to help it."
    James Madison

    "It does not take a majority to prevail ... but rather an irate, tireless minority, keen on setting brushfires of freedom in the minds of men." - Samuel Adams



    Μολὼν λάβε
    Dum Spiro, Pugno
    Tu ne cede malis sed contra audentior ito

  4. #3
    Fluoride (hydrofluoride silicic acid) in the water supply is an industrial waste, and the Fluoride (Sodium Fluoride) in the toothpaste is different . Both equally bad.

    It has been shown to lower I.Q.'s.

    “The spirits of darkness are now among us. We have to be on guard so that we may realize what is happening when we encounter them and gain a real idea of where they are to be found. The most dangerous thing you can do in the immediate future will be to give yourself up unconsciously to the influences which are definitely present.” ~ Rudolf Steiner

  5. #4
    But a recent study published in The Lancet, the world's most renowned medical journal,
    The paper which claimed a link between fluoride and brain development looked at a few papers from China. They rejected dozens which did not fit their criteria (didn't support their claim). What they observed was an average of two points difference in IQ for students in areas of fluoridation and some areas without. Two IQ points is an insignificant amount and is less than the margin of error in the tests- the same person taking the same test on a different day or a different time of day can normally vary ten points.

    Read what the Lancet actually had to say about the study- not what Natural News claims:

    http://www.thelancet.com/journals/la...c_location=ufi

  6. #5
    After reviewing 27 of the human IQ studies, a team of Harvard scientists concluded that fluoride’s effect on the young brain should now be a “high research priority.” (Choi, et al 2012). Other reviewers have reached similar conclusions, including the prestigious National Research Council (NRC), and scientists in the Neurotoxicology Division of the Environmental Protection Agency (Mundy, et al). In the table below, we summarize the results from the 50 studies that have found associations between fluoride and reduced IQ and provide links to full-text copies of the studies. For a discussion of the 7 studies that did not find an association between fluoride and IQ, click here.
    Quick Facts About the 50 Studies:

    Location of Studies: China (32), India (13), Iran (4), and Mexico (1).
    Sources of Fluoride Exposure: 41 of the 50 IQ studies involved communities where the predominant source of fluoride exposure was water; seven studies investigated fluoride exposure from coal burning.

    Fluoride Levels in Water: IQ reductions have been significantly associated with fluoride levels of just 0.7 to 1.2 mg/L (Sudhir 2009); 0.88 mg/L among children with iodine deficiency. (Lin 1991) Other studies have found IQ reductions at 1.4 ppm (Zhang 2015); 1.8 ppm (Xu 1994); 1.9 ppm (Xiang 2003a,b); 0.3-3.0 ppm (Ding 2011); 2.0 ppm (Yao 1996, 1997); 2.1 ppm (Das 2016); 2.1-3.2 ppm (An 1992); 2.2 ppm (Choi 2015); 2.3 ppm (Trivedi 2012); 2.38 ppm (Poureslami 2011); 2.4-3.5 ppm (Nagarajappa 2013); 2.45 ppm (Eswar 2011); 2.5 ppm (Seraj 2006); 2.5-3.5 ppm (Shivaprakash 2011); 2.85 ppm (Hong 2001); 2.97 ppm (Wang 2001, Yang 1994); 3.1 ppm (Seraj 2012); 3.15 ppm (Lu 2000); 3.94 ppm (Karimzade 2014); and 4.12 ppm (Zhao 1996).

    Fluoride Levels in Urine: About a quarter of the IQ studies have provided data on the level of fluoride in the children’s urine, with the majority of these studies reporting that the average urine fluoride level was below 3 mg/L. To put this level in perspective, a study from England found that 5.6% of the adult population in fluoridated areas have urinary fluoride levels exceeding 3 mg/L, and 1.1% have levels exceeding 4 mg/L. (Mansfield 1999) Although there is an appalling absence of urinary fluoride data among children in the United States, the excess ingestion of fluoride toothpaste among some young children is almost certain to produce urinary fluoride levels that exceed 2 ppm in a portion of the child population.

    Methodological Limitations

    As both the NRC and Harvard reviews have correctly pointed out, many of the fluoride/IQ studies have used relatively simple designs and have failed to adequately control for all of the factors that can impact a child’s intelligence (e.g., parental education, socioeconomic status, lead and arsenic exposure). For several reasons, however, it is unlikely that these limitations can explain the association between fluoride and IQ.

    First, some of the fluoride/IQ studies have controlled for the key relevant factors, and significant associations between fluoride and reduced IQ were still observed. This fact was confirmed in the Harvard review, which reported that the association between fluoride and IQ remains significant when considering only those studies that controlled for certain key factors (e.g., arsenic, iodine, etc). Indeed, the two studies that controlled for the largest number of factors (Rocha Amador 2007; Xiang 2003a,b) reported some of the largest associations between fluoride and IQ to date.

    Second, the association between fluoride and reduced IQ in children is predicted by, and entirely consistent with, a large body of other evidence. Other human studies, for example, have found associations between fluoride, cognition, and neurobehavior in ways consistent with fluoride being a neurotoxin. In addition, animal studies have repeatedly found that fluoride impairs the learning and memory capacity of rats under carefully controlled laboratory conditions. An even larger body of animal research has found that fluoride can directly damage the brain, a finding that has been confirmed in studies of aborted human fetuses from high-fluoride areas.

    Finally, it is worth considering that before any of the studies finding reduced IQ in humans were known in the western world, a team of U.S. scientists at a Harvard-affiliated research center predicted (based on behavioral effects they observed in fluoride-treated animals) that fluoride might be capable of reducing IQ in humans. (Mullenix 1995)
    http://fluoridealert.org/studies/brain01/
    “The spirits of darkness are now among us. We have to be on guard so that we may realize what is happening when we encounter them and gain a real idea of where they are to be found. The most dangerous thing you can do in the immediate future will be to give yourself up unconsciously to the influences which are definitely present.” ~ Rudolf Steiner

  7. #6
    As your piece notes:

    As both the NRC and Harvard reviews have correctly pointed out, many of the fluoride/IQ studies have used relatively simple designs and have failed to adequately control for all of the factors that can impact a child’s intelligence (e.g., parental education, socioeconomic status, lead and arsenic exposure).
    I also notice they fail to state the difference in IQ observed. Why? Because they fall well within the normal variance in the IQ tests.

    http://www.livescience.com/36143-iq-change-time.html

    There's no such thing as "an" IQ. You have an IQ at a given point in time. That IQ has built-in error. It's not like stepping on a scale to determine how much you weigh.

    The reasonable error around any reliable IQ is going to be plus or minus 5 or 6 points, to give you a 95 percent confidence interval. So, for example, if a person scores 126, then you can say with 95 percent confidence that the person's true IQ is somewhere between 120 and 132; within our science we don't get any more accurate than that.

    But as soon as you go to a different IQ test, then the range is even wider, because different IQ tests measure slightly different things.
    Last edited by Zippyjuan; 07-18-2016 at 07:16 PM.

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  9. #8
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    Last edited by sonam86; 10-24-2021 at 09:08 AM. Reason: update



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