Tag Archives: cells

The Human Body— Extraordinary Ordinary Things

There are some 100 trillion (100,000,000,000,000) of them and they are with us all the time, night and day, waking and sleeping, 24-hours around the clock, i.e. whatever we are doing and whenever we are doing it. Being 100 trillion of them firmly fixes them among the most ordinary things we know. Yet we almost never think about them. And when we do, we almost always have a confused and inaccurate picture of them. What are they? The 100 trillion individual cells that make up every human body.

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