What runes and mantras are responsible for this? Ideally, you need to be ready, for example, to run a marathon every day and fully compensate for the losses. But to begin with, it is enough to replenish one program with 10-15 minutes of high-intensity training per day, after which demotivation usually occurs the next day. And I already know how to restore muscles using qi, so I'm not a beginner, I think there is also a way to restore the nervous system, you just need to figure out how and where to direct the energy.
There is no need to write here about those methods that cannot allow you to recover by the next day. But I can consider ideas and start experimenting with ways that are theoretically possible