Answer:
You carry your own body weight when you walk. This is known as weight-bearing exercise. Some of the benefits include:
increased cardiovascular and pulmonary (heart and lung) fitness
reduced risk of heart disease and stroke
improved management of conditions such as hypertension (high blood pressure), high cholesterol, joint and muscular pain or stiffness, and diabetes
stronger bones and improved balance
increased muscle strength and endurance
reduced body fat.