Andrew Huberman· PhD
When we want something to happen, however, we want to learn a language, we want to learn a new skill, we want to become more motivated, what do we know for certain? We know that that process of getting neuroplasticity so that we have more focus, more motivation, absolutely requires the release of epinephrine. We have to have alertness in order to have focus and we have to have focus in order to direct those plastic changes to particular parts of our nervous system.