

So I went back and started reading, or just looking at, really old questions
about Naruto, including Shippuden. I read
[this](https://anime.stackexchange.com/questions/304/is-it-possible-to-
combine-all-five-chakra-elements) question, but
[this](https://anime.stackexchange.com/a/311/20270) answer got my attention.
After looking at the answer, I started to wonder how exactly Kakuzu's methods
of getting the chakra natures work.

We know that he gets all the chakra natures by stealing people's hearts
throughout the years but once the hearts he has on are damaged or just get too
old he has to get new ones. But how does that work? I always thought the
nature of the chakra was in the body not exactly the heart. Or do both, body
and heart, have the chakra nature, so when Kakuzu gets the hearts he gets part
of the chakra nature?

Also, since we also know that Kakuzu has been living for a while, until
Kakashi killed him, exactly how old is he? I know he has been living since the
First Hokage was alive, which I guess was about 100 years ago, so I think he
was at least a little more than 100 years old.


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question
naruto
Kakuzu's way of getting all the five chakra elements


**This is just the theory** , but I always assumed that since the blood
vessels and the chakra network are intricately related, if you take one the
other also follows.

Thus when Kakuzu takes the heart of the shinobi he also takes the chakra
vessels tied in and around the heart. Thus he would push his own chakra into
the heart while his unique body mimics the nature of the chakra vessels of the
original body.

Thus he builds his own chakra, uses the handsigns to concentrate/accumulate
it, but when nature transforming the chakra he passes it through the heart
which acts like a processor to change the chakra nature to the type needed.


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answer