The bit about the Kenyan Usurper (Barack Obama) and Michelle Bachman (Tea Party) reveals that this is extreme right wing propaganda of monumental stupidity!
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A typical hunter-gatherer enjoyed a more varied diet and consumed more protein and calories than settled people, and took in five times as much vitamin C as the average person today. Even in the bitterest depths of the ice ages, we now know, nomadic people ate surprisingly well – and surprisingly healthily. Settled people, by contrast, became reliant on a much smaller range of foods, which all but ensured dietary insufficiencies. The three great domesticated crops of prehistory were rice, wheat and maize, but all had significant drawbacks as staples. As John Lanchester explains: ‘Rice inhibits the activity of Vitamin A; wheat has a chemical that impedes the action of zinc and can lead to stunted growth; maize is deficient in essential amino acids and contains phytates, which prevent the absorption of iron.’ The average height of people actually fell by almost six inches in the early days of farming in the Near East. Even on Orkney, where prehistoric life was probably as good as it could get, an analysis of 340 ancient skeletons showed that hardly any people lived beyond their twenties. What killed the Orcadians was not dietary deficiency but disease. People living together are vastly more likely to spread illness from household to household, and the close exposure to animals through domestication meant that flu (from pigs or fowl), smallpox and measles (from cows and sheep), and anthrax (from horses and goats, among others) could become part of the human condition, too. As far as we can tell, virtually all of the infectious diseases have become endemic only since people took to living together. Settling down also brought a huge increase in ‘human commensals’ – mice, rats and other creatures that live with and off us – and these all too often acted as disease vectors, too. So sedentism meant poorer diets, more illness, lots of toothache and gum disease, and earlier deaths. What is truly extraordinary is that these are all still factors in our lives today. Out of the thirty thousand types of edible plant thought to exist on earth, just eleven – corn, rice, wheat, potatoes, cassava, sorghum, millet, beans, barley, rye and oats – account for 93 per cent of all that humans eat, and every one of them was first cultivated by our Neolithic ancestors. Exactly the same is true of husbandry. The animals we raise for food today are not eaten because they are notably delectable or nutritious or a pleasure to be around, but because they were the ones first domesticated in the stone age. We are, in the most fundamental way, stone age people ourselves. From a dietary point of view, the Neolithic age is still with us. We may sprinkle our dishes with bay leaves and chopped fennel, but underneath it all is stone age food. And when we get sick, it is stone age diseases we suffer.adapted from At Home – A Short History of Private Life by Bill Bryson (2010)