User blog comment:TRAPPER/How many years do you think luffys life has been shortened/@comment-3242083-20110114003310

And he took that treatment twice, right? So I say 20 years because of hormone doping and another 10 for using gear's and fighting to his limit again and again.

Oh well, most likely he will die like a real D anyway (far to early, but with honor and a smile on his face)