The purpose of stretching in a fitness regimen is to enhance flexibility, improve range of motion, and prevent injuries. Integrating stretching before and after workouts helps prepare muscles for physical activity and promotes recovery. It increases blood flow to muscles, reducing soreness and stiffness post-exercise. Stretching can also contribute to better athletic performance by improving coordination and balance. Regular flexibility training can alleviate muscle tension and promote relaxation, contributing to overall well-being and stress reduction.