Leading Geneticist: Human Intelligence is Slowly Declining

Does this surprise you? Let’s see what the “expert” has to say about it. Via myscienceacademy.org:

by Mike Barrett,

Would you be surprised to hear that the human race is slowly becoming dumber, and dumber? Despite our advancements over the last tens or even hundreds of years, some ‘experts’ believe that humans are losing cognitive capabilities and becoming more emotionally unstable. One Stanford University researcher and geneticist, Dr. Gerald Crabtree, believes that our intellectual decline as a race has much to do with adverse genetic mutations.

According to Crabtree, our cognitive and emotional capabilities are fueled and determined by the combined effort of thousands of genes. If a mutation occurred in any of of these genes, which is quite likely, then intelligence or emotional stability can be negatively impacted.

“I would wager that if an average citizen from Athens of 1000 BC were to appear suddenly among us, he or she would be among the brightest and most intellectually alive of our colleagues and companions, with a good memory, a broad range of ideas, and a clear-sighted view of important issues. Furthermore, I would guess that he or she would be among the most emotionally stable of our friends and colleagues,” the geneticist began his article in the scientific journal Trends in Genetics.

Further, the geneticist explains that people with specific adverse genetic mutations are more likely than ever to survive and live amongst the ‘strong.’ Darwin’s theory of ‘survival of the fittest’ is less applicable in today’s society, therefore those with better genes will not necessarily dominate in society as they would have in the past.

While this hypothesis does have some merit: are genes really the primary reason for the overall cognitive decline of the human race? If humans really are lacking in intelligence more than before, it’s important to recognize other possible causes. Let’s take a look at how our food system plays a role in all of this.

It’s sad, but true; our food system today is contributing to lower intelligence across the board.

The Water Supply, Fluoride is Lowering Your IQ

Researchers from Harvard have found that a substance rampant in the nation’s water supply, fluoride,  is lowering IQ and dumbing down the population. The researchers, who had their findings published in the prominent journal Environmental Health Perspectivesa federal government medical journal stemming from the U.S National Institute of Environmental Health Sciences, concluded that ”our results support the possibility of adverse effects of fluoride exposures on children’s neurodevelopment”.

“In this study we found a significant dose-response relation between fluoride level in serum and children’s IQ…This is the 24th study that has found this association”.

One attorney, Paul Beeber, NYSCOF President, weighs in on the research by saying:

“It’s senseless to keep subjecting our children to this ongoing fluoridation experiment to satisfy the political agenda of special-interest groups. Even if fluoridation reduced cavities, is tooth health more important than brain health? It’s time to put politics aside and stop artificial fluoridation everywhere”.

Pesticides are Diminishing Intelligence

One study published in the Proceedings of the National Academy of Sciences found that pesticides, which are rampant among the food supply, are creating lasting changes in overall brain structure — changes that have been linked to lower intelligence levels and decreased cognitive function. Specifically, the researchers found that a pesticide known as chlorpyrifos (CPF) has been linked to ”significant abnormalities”. Further, the negative impact was found to occur even at low levels of exposure.

Lead researcher Virginia Rauh, a professor at the Mailman School of Public Health, summarized the findings:

“Toxic exposure during this critical period can have far-reaching effects on brain development and behavioral functioning.”

Processed Foods, High Fructose Corn Syrup Making People ‘Stupid’

Following 14,000 children, British researchers uncovered the connection between processed foods and reduced IQ. After recording the children’s’ diets and analyzing questionnaires submitting by the parents, the researchers found that if children were consuming a processed diet at age 3, IQ decline could begin over the next five years. The study found that by age 8, the children had suffered the IQ decline. On the contrary, children who ate a nutrient-rich diet including fruit and vegetables were found to increase their IQ over the 3 year period. The foods considered nutrient-rich by the researchers were most likely conventional fruits and vegetables.

Interestingly, one particular ingredient ubiquitous in processed foods and sugary beverages across the globe -high fructose corn syrup – has been tied to reduced IQ. The UCLA researchers coming to these findings found that HFCS may be damaging the brain functions of consumers worldwide, sabotaging learning and memory. In fact, the official release goes as far to say that high-fructose corn syrup can make you ‘stupid’.

Gene mutations may have something to do with our ongoing decline in intelligence, but let’s stop to think for a moment what we’re doing to ourselves to make this decline even more prominent.

Additional Sources:




2 responses to “Leading Geneticist: Human Intelligence is Slowly Declining

  1. This is something that I have been saying for years now and it is good to hear at least some people talk about it. This myth that our kids are smarter than we are needs to be busted so that we can fix the problem.

    Year after year, just like last week, we hear our president and other elected officials walk up to a microphone and talk about how important education is. What they mean to say is that we need to spend more money on education. But America spends more money per a child today than any other country and we do not have the smartest kids in the world. So more spending does not mean more education. We need to attack the problem in a better way.

    It is hard to over come a genetic deficiency if that is what is causing the dumbing down, but I also believe that genetics can be over come with hard work. We need to teach kids to how to think and not what to think.

    Personally I have two daughters and all I will say is that I am breaking the cycle with them and my wife and I are doing things differently. So far I have seen some differences as my kids prefer to read books than watch TV. They ask more questions than I did and they like to know how things work. I will not settle with the status quo when it comes to my children and I hope more parents do the same thing.

    • Wholeheartedly agree – education has become indoctrination (Dumbing Us Down by John Taylor Gatto is a good introduction to this idea, but it’s obvious to any intelligent person who’s been through state education). Children aren’t taught critical thinking – if anything, they’re chastized when they question the orthodoxy. There are obviously exceptions – mainly on account of teachers with integrity – but the curriculum itself isn’t geared towards creating inquisitive, questioning adults, just by-the-books “repeaters” who memorize information to pass rigid exams. Parents have the power to challenge this model in how they raise their children – unfortunately, so many are products of that system their children fall into the same trap.

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