Board Thread:Naruto Discussions/@comment-3568954-20160615123337/@comment-734582-20160617095051

Actionmanrandell wrote: TheKillman the manga and anime specifically debunk that (...) also Stamina is a blanket term for the combination of physical energy, spiritual energy and life force It doesn't. The manga doesn't do a lot of distinction, other than a few specific cases. Wood Release reacts to the potent physical energy, which is why it drains people. Sasuke was drained of his strength (again physical energy). Only users of Preta Path (e.g. Sasuke in VotE-2) seem to be able to drain chakra itself and use it for themselves. All other cases just drain people's physical energy, it seems. Especially since they don't mentally tire, just physically.