The effects kept going after the training, and you made no conscious effort to change the waves, the discomfort from the stuttering was driving the brain to low

The effects kept going after the training, and you made no conscious effort to change the waves, the discomfort from the stuttering was driving the brain to lower delta waves. This is all from a JRE podcast years back, so I'm probably wrong, but I think the logic was that this could be applied to other subconcious processes (like regulating your heartbeat to stay in some optimal value, or the serotonin levels in the brain), and that the effects were not conscious. Kind of setting a new normal for yourself.