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The old world is gone

Sunday, February 19, 2017 9:24
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(Before It's News)

An interesting essay from aeon reminds us of more serious issues than the latest Trump spat.

Between the mid-1990s and the mid-2000s alone, the likelihood of having a classmate with a food allergy increased by 20 per cent in the United States. In fact, over the past five decades, the incidence of all allergies and autoimmune diseases – caused by your body attacking itself – has skyrocketed. What could explain our sudden hypersensitivity to our surroundings and ourselves? Since evolution operates on the timescale of millennia, the culprits lie not in our genes but somewhere within our environment.

One thing that has changed in public health is our awareness of germs and how they spread. In response to that insight, over the past half-century our implementation of hygiene practices has spared us from debilitating infections and enormous human misery. But the new vigilance might have altered the development of our immune system, the collection of organs that fight infections and internal threats to our health…

…We are forced to conclude that the explosion of allergies and autoimmune diseases results from a mismatch between genes selected by pressures of our evolutionary past and the reality of modern life. While we have adapted in the past, we might not be able to adapt again by relying on biology alone. There is no going back – the old world is gone. 

It may be age or a coincidence, but during a working life spent handling contaminated water samples I hardly ever had a day off work. Since retirement I seem to have had far more minor illnesses than I ever had while working.



Source: http://akhaart.blogspot.com/2017/02/the-old-world-is-gone.html

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