Quote Originally Posted by poopdeville
If Yahiko is controlling the bodies from a distance, why would setting off that bomb over Konoha lower his life expectancy?
Even though he may be controlling bodies from a distance to a certain extent he still running things, Pein did a Jutsu that took out half of konoha and the price he had to pay is his limiting his life span. They’re are certain Jutsu that has a recoil, like when the old lady (forget name) did a Jutsu to save Gaara life ultimately ending her life as the heavy price that she had to pay to perform the Jutsu.