Exercise boosts self-esteem by enhancing physical appearance, improving fitness abilities, and fostering a sense of accomplishment. Regular physical activity leads to the release of endorphins, which are hormones that promote feelings of happiness and satisfaction. When individuals achieve their fitness goals, whether big or small, it creates a positive feedback loop that encourages further participation in exercise. Additionally, joining group classes or sports promotes social interaction, helping individuals feel connected and supported, which further uplifts self-esteem. Overall, exercise serves as a powerful tool for building confidence and a positive self-image.