“Cross-training” in fitness refers to combining different forms of exercise within a training regimen. This approach allows individuals to vary their workouts, incorporating activities like running, cycling, swimming, and strength training. Cross-training can enhance overall fitness by targeting various muscle groups and reducing the risk of overuse injuries associated with repetitive activities. It also keeps exercise routines fresh and engaging, helping to maintain motivation and improve both endurance and strength. Ultimately, it fosters a more balanced level of physical fitness.