Physical activity refers to any movement of the body that requires energy expenditure. This includes activities like walking, running, dancing, and playing sports. Engaging in physical activity helps improve overall health, strengthens muscles, and enhances cardiovascular fitness. It can be done individually or in groups and can vary in intensity from light to vigorous. Regular physical activity is essential for maintaining a healthy lifestyle. It can help manage weight, reduce the risk of chronic diseases, and improve mental well-being. Activities can be structured, like gym workouts, or unstructured, like playing outside. Incorporating exercise into daily routines is beneficial for people of all ages.