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How many cells are in the human body?

Question asked by: knowitall

The number of cells in the human body - good question.

First let's make clear we can only talk about average figures. Depending on the volume a person fills the more or less cells they will have - a tall person has many more for instance than a shorter person. The number of cells in an individual also changes rapidly over time t.

As a guesstimate, some scientists think the figure is 50 trillion, or 50 million million cells; whilst others think it is between half and double that figure. But directionally at least it is probably reasonably correct.

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