• Question: How many cells are there exactly in a humans body

    Asked by danniella1588 to Colm, Eoin, Joseph, Lauren, Stephen on 11 Nov 2013.
    • Photo: Joseph Roche

      Joseph Roche answered on 11 Nov 2013:

      We don’t know exactly how many there are but there are lots. There are trillions of cells in every body.

    • Photo: colm bracken

      colm bracken answered on 11 Nov 2013:

      At least a trillion, but the exact number is still not known. Some scientists think it could be as large as 10 Quadrillion (or 10 million billion). The brain alone has 100 billion neurons which are a special type of cell. So basically there are more cells in the human body than there are stars in our galaxy!

    • Photo: Eoin O Colgain

      Eoin O Colgain answered on 11 Nov 2013:

      Without doubt, there are lots. Are you volunteering to count?

    • Photo: Stephen Scully

      Stephen Scully answered on 15 Nov 2013:

      There are lots and lots, I think trillions too. The exact number you cannot say as it changes, every breath, every dinner changes the number of cells in the body.

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