Automatic Repair and Regeneration:

a cool feature of the human body

city

Imagine the human body as a major metropolitan city such as New York.

New York City is buzzing with activity around the clock. Construction workers and repair crews are busy maintaining it every single day. Old buildings are razed to make room for new buildings. Underground sewage and water main pipes are constantly being replaced, repaired and added. Sidewalks are being cleaned.  Electrical grids are monitored and adjusted.  Waste is being taken to the dumpster.

If all this did not happen, the city would fall into disrepair after a few months, and parts of the city would not work.

NEXT:  How Your Body Repairs Itself

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