Half of all American adults attempt to lose weight every year. Exercise is one of the most common strategies employed by those trying to shed extra pounds. It burns calories, and this plays a key role in weight loss. It’s estimated that a 155-pound (70-kg) person burns around 167 calories per 30 minutes of walking at a moderate pace of 4 mph (6. 4 km/h) (5) Walking is convenient and an easy way for beginners to start exercising without feeling overwhelmed or needing to purchase equipment. It’s a lower-impact exercise, meaning it doesn’t stress your joints.