What type of exercise is primarily aimed at improving flexibility?

Stretching exercises are primarily aimed at improving flexibility because they are specifically designed to elongate muscles and increase the range of motion in joints. Flexibility is crucial for overall physical performance and daily activities, as it can help prevent injuries and improve posture. These exercises involve various techniques, such as static stretching (holding a stretch for a period), dynamic stretching (moving through a range of motion), and proprioceptive neuromuscular facilitation (PNF), each contributing to enhanced muscle control and flexibility.

Aerobic exercises primarily focus on increasing cardiovascular fitness and endurance, while strength training emphasizes building muscle strength and mass. High-intensity interval training (HIIT) combines short bursts of intense activity with periods of rest but does not specifically target flexibility. Therefore, among the options presented, stretching exercises are uniquely suited to improve flexibility, making them the correct answer.