Economics of Pollution

Did you know that your body’s digestive system contains good bacteria? The word ‘bacteria’ usually conjures up negative images of infections and colds, but there are bacteria in your body that you could not live without. These bacteria perform helpful functions, such as extracting nutrients from hard-to-digest foods and making certain vitamins. If you were to take a drug that completely cleaned out all of the bacteria from your digestive system, your health would suffer.

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Source: study.com