Question: how many cells do you have in your body all together

Whats important to consider is that the exact number of cells in your body is constantly in flux (changing depending on many different factors). If a cell gets too old, for example, it can be selected to die by a process called apoptosis (think of it as programmed cell death, like force closing an application on your computer), and (some) cell types also divide and replicate and regenerate pretty frequently (like your skin and blood for example). If I go donate a pint of blood this afternoon, I’ll lose several thousand or even million cells but I’ll soon make them again. Your body is incredibly able to regulate the death and replication of the many cell types it needs at any given time in response to any changes in your internal or eternal environment. When this regulation goes wrong is when we can start to develop serious health problems like tumours in cancer – in summary, the number of cells we have in our body is often changing to adapt to life around us, but there is definitely a ‘healthy’ range of number of cells that if exceeded, may be harmful.

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