Aerobic Workout Buy a pedometer

Track exactly how many steps you take per day. Guidelines suggest a minimum daily target of 5,000 steps (about 2½ miles/4 km), usually achievable through incidental everyday activity. Any less and you lead a sedentary life. To move into the active category, step up to 10,000 steps or more by adding in extra walks before work, at lunchtime, or in the evening and using stairs instead of elevators.