I don't know how to phrase this proper but we're all made up of atoms right and we grow from the air we breath and food we eat right. But we also shed skin get cut, excrete & urinate etc. So is it possible that at one point in life are whole body is made up of competely different atoms to the ones we were born with or lets say most. Or is DNA always the exact same atoms from the start and only gaining new ones.

Bassically are we made up of the exact same material throughout life or what?

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