A woman jogs along a sunlit path, embraced by the warm glow of the early morning light. Running confidence belongs to everyone, not just elite athletes with impressive times. Athletes at the top levels of sport call it the most important psychological trait needed to succeed . Many runners lace up their shoes to build belief in their abilities or to feel what real confidence is like, maybe even for the first time . Self-assurance can be fragile . One bad performance might cr
