New york city subway child fare cost,penn station contact number,thomas the train roundhouse track design - PDF 2016

admin 16.01.2016

A team of geneticists made headlines a few months ago after its mission to document all the bacteria on the New York City subway turned up nearly 600 different species of microbes crawling around on all those greasy rails.
They found some icky stuff, including the bacteria that give people food poisoning, and the bugs that can cause meningitis.
But before opting for an Uber, keep this in mind: Almost all of the germs they found were completely harmless.
According to an idea called the hygiene hypothesis, exposure to germs and certain infections a€” especially at a young age a€” actually helps prime the immune system so it can defeat these microbes more easily in the future.


Some research has suggested that the idea could partially explain why children who grow up around animals and in rural areas appear to develop conditions like asthma less often than children who don't. And even for people other than young children, the hygiene hypothesis makes intuitive sense: After all, literally every surface in the world is covered in bacteria. That's why Mason isn't afraid to let his own young daughter ride the subway or play in the dirt. Like the surfaces people touch and the ground they walk on, the human body is already teeming with thousands of different species of bacteria, from the Lactobacillus acidophilus lining digestive tracts to the Propionibacterium acnes populating the skin on faces and arms.





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