The "Fight Response" is a physiological reaction that occurs when an individual perceives a threat. It is part of the body's fight-or-flight response, which prepares a person to confront danger. This response involves the release of stress hormones like adrenaline and cortisol, increasing heart rate and energy levels, allowing for quick action. During the fight response, the body prioritizes essential functions, redirecting blood flow to muscles and enhancing alertness. This reaction can lead to aggressive behavior as a means of self-defense. Understanding this response can help individuals manage their reactions in stressful situations more effectively.