What's the Difference Between Top Down and Bottom Up?

i'd like to ask you about the theory of the nervous system and then also specific sort of interventions that you were recommending. Am, just kind of making these small changes that do do make a difference to your nervous system in the long ronwhat it seems like they re a kind of two s of the course,. A, like the theory of  the nervous system and helping people to understand that, and then also help them with their own actions.