Muscle soreness, particularly delayed onset muscle soreness (DOMS), is physiologically significant as it indicates the body's adaptation process. Soreness typically occurs after intense or unfamiliar workouts, signaling micro-tears in muscles that are part of the muscle-building process. This discomfort leads to recovery and growth when combined with proper nutrition and rest. Understanding soreness can help individuals gauge their workouts and recovery needs, ultimately improving performance and reducing the risk of injury.