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.
Walking for 30 minutes a day
To get the health benefits, try to walk for at least 30 minutes as briskly as you can on most days of the week. ‘Brisk’ means that you can still talk but not sing, and you may be puffing slightly. Moderate activities such as walking pose little health risk but, if you have a medical condition, check with your doctor before starting any new exercise program of physical activity.