[vo2maxer]

Fear seems to be a complex autonomically mediated phenomenon elicited by both instinctually determined and learned responses to some stimuli. It’s adaptive and critical to the survival of any organism. No one can completely eliminate fear from their biological repertoire anymore than they can stop recoiling from a loud noise. At best, all that can be done is tame the behavioral response to a probable stimulus. This review offers some definitions which may be useful: https://www.cell.com/current-biology/fulltext/S0960-9822(12)...