About how many cells are there in the average teenage body?

for the average teenager- average as in a healthy/physically ';normal'; teenager? estimatesAbout how many cells are there in the average teenage body?
Human beings have an estimated 100 trillion or 10^14 cells; a typical cell size is 10 碌m, a typical cell mass 1 nanogram.


If we take the latter number, then a adult of 80 kg has 8x10^13 cells, a teenager of 40 kg half as much.