Recovery days are significant in a workout regimen as they allow the body to repair and replenish energy stores while reducing the risk of overtraining and potential injury. During recovery, muscle tissues rebuild and become stronger, leading to better performance in subsequent workouts. Recovery days can also promote psychological well-being by providing the necessary break from rigorous routines. Incorporating rest or active recovery—light activities like walking or yoga—can lead to long-term improvements in fitness, strength, and overall health.