Physical activity is essential for weight loss, particularly in individuals with obesity. The World Health Organization recommends at least 150 minutes of moderate-intensity aerobic activity per week, such as brisk walking or cycling. Incorporating strength training exercises two or more days per week helps build lean muscle mass, which can boost metabolism and promote fat loss. Regular physical activity also improves overall health by reducing the risk of chronic diseases, such as diabetes and heart disease. Consistency and gradual progression are key to achieving lasting results and improving overall fitness in weight management.