Board Thread:Theories and Speculation/@comment-45444155-20200410191621/@comment-4912646-20200422143408

ReweR 1331 wrote: Do people have chakra now? For example, take the conditional Kakashi, does he have the chakra in his passive state? It's just that in my opinion, stirring energies is a feature of creating/shaping techniques. According to Ebisu, no. People only create chakra when they are actively using a technique, and any leftover chakra they create is "wasted" (seemingly expelled from the body).

However, many other things in the series imply that people (and even animals) do have chakra in their passive state. For example, sensor types can detect people who aren't in battle, and the Eight Gates are implied to restrict the flow of chakra at all times. During Neji vs. Naruto, we see that people can't even stand if their chakra flow is blocked, implying there must be at least a little bit flowing through the body for it to function.

However, there are no explicit statements in the manga (or guidebooks as far as I can tell) that say humans or other living things passively produce chakra, so it's somewhat open to interpretation.