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A Leading Geneticist Says Human Intelligence is Slowly Declining

Look, there's no easy way to put it. Simply said, it is a great time to be dumb. Everything from pop music to popular films arguably cater to an increasingly unintelligent populous that has lost 14IQ points on average since the Victorian Era. Practically speaking, that is the difference between someone with average intelligence and one who is cognitively impaired. 2671077524_e9ebc5193c_o It turns out that in addition to our increasing ditziness, we are becoming an emotionally unstable bunch, too. At least, that is what Stanford University researcher Dr Gerald Crabtree believes. "I would be willing to 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," Dr Crabtree writes in "Our Fragile Intellect." However, don't feel too bad – We are not entirely to blame, at least not individually. Dr Crabtree believes, as stated in his report, it is quite likely that a mutation has occurred in our genes that negatively affects the intelligence and emotional stability of our species. The increasing ease with which we approach life is to blame, too. Charles Darwin's theory of 'survival of the fittest' mandates that only the most genetically sound members of a species will survive long enough to mate and pass on their genes. But in much of our modern society, the playing field has been levelled by human rights. Statistically speaking, you willlive no matter how smart you might be (unless you are a holistic doctor, of course), thanks to the advancements in technology and society that make life a lot easier in much of the world.
Let's face it – you know things are a little too easy when people like this can become some of the most successful people on the planet. Let's face it – you know things are a little too easy when people like this can become some of the most successful people on the planet.
However, while this theory and Dr Crabtree's hypothesis of genetic mutation do hold merit, are they the onlythings contributing to the statistically proven fact that we are getting dumber? Not so fast. Enter another study, done by Harvard researchers that appeared in the journal Environmental Health Perspectives. As will be unsurprising to many readers of this site, researchers found the amount of fluoride in our water supply to be negatively impacting the neurodevelopment of children. The report reads, verbatim: "Children in high-fluoride areas had significantly lower IQ scores than those who lived in low-fluoride areas." The document also states that this is the 24thstudy to arrive at this conclusion. However, fluoride is not the only thing making us dumber – not by a long shot. Pesticides are also to blame, according to a study published in the Proceedings of the National Academy of Sciences. Manual_sprayer The amount of pesticides found in our foods is quite alarming. Here are a few numbers for reference that were found in a study of various food items by the Pesticide Action Network: Even at low levels of exposure (which obviously isn't the case in our food system riddled with pesticide use), these chemicals have detrimental effects on the brain development and behaviour of individuals.

So you like processed foods?

Sugar_Candy_Ooty Well, if they stick around much longer, and things keep going the way they have been in the world, soon the only form of vegetation around will be brain-dead us. British researchers have found that processed foods alsoare linked to reduced IQ. Their findings were reported in the Journal of Epidemiology and Community Health, which linked an unhealthy diet to a decrease in the IQ points of young children. This directly contrasts with 'health-conscious' children, who faced an IQ increase. So from gene mutations to our hacking of natural selection right through to fluoride and our diets, we are essentially as a society making ourselves dumber and dumber with time. But there are things you can do to combat several of these causes of intelligence loss. Check out this post on effectively washing pesticides from your food. And here's a cool video from David about clean drinking water: