Dynamic stretching is beneficial for flexibility as it involves moving parts of your body through a full range of motion. Unlike static stretching, which can be best for post-exercise, dynamic stretches prepare muscles for activity by engaging them and enhancing blood flow. Incorporating movements like leg swings and arm circles into a warm-up routine can improve flexibility and increase overall performance. This method effectively reduces the risk of injuries and prepares muscles for more strenuous activities, making it a vital component of any fitness regimen.