u/Waste_Recognition791

Like yeah, it increases one's lifespan. What I want to know is how much change in appearance it can bring, for example when ren zu used the 80 year lifespan gu, he got the body back of a 20 year old youth from a 100 old body, and when tie bai yun shen used the 14 year lifespan gu , he gained some youthfulness (about 14 years younger body) , so the lifespan gu must add the lifespan to one's body making it that[insert number] youthful, so what if a already young person , like a 15 year old use a 200 year lifespan gu , he surely won't become a fetus but retain his appearance and have the 200 years added to his lifespan . Now here, at what age would his body start to show signs of oldness...

Also, wouldn't it be possible to make lifespan gu with enough human and heaven path attainment...?

Also, can a mortal use a lifespan gu?

If no then,

1.Is it because they have no aparature? or,

Is it because can't use primeveil essense to activate the gu?

If the second one , can't a gu master use their essence to activate the gu and somehow use it on the mortal?

Also, lifespan gu is mortal gu so that there can be more than 1 , but doesn't it imply that there should be an immortal level lifespan gu somewhere? Is it what fang yuan is after?

WHERE IS THE BEST OF 2025 VIDEO??