Stress hormones, primarily cortisol and adrenaline, significantly impact physical performance. When released during stressful situations, they enhance energy availability by increasing glucose levels in the bloodstream and mobilizing fat stores. This process can temporarily boost strength and stamina; however, chronic stress may lead to a decline in performance due to muscle breakdown and fatigue. Over time, elevated levels of these hormones can result in negative consequences, such as lowered immune function and increased injury risk, ultimately hindering long-term physical performance and recovery.