The psychological effects of exercise on mood are significant and well-documented. Regular physical activity stimulates the release of endorphins, which are hormones that promote feelings of happiness and well-being. Exercise can help alleviate symptoms of anxiety and depression, acting as a natural mood lifter. Additionally, physical activity increases self-esteem and can enhance cognitive function, leading to improved overall mental health. Group exercises can also foster social interaction, further contributing to positive mood changes and feelings of connection with others.