The answer is the last option.) All of the above. When working out at a higher intensity, you burn more calories which can cause weight loss, increased heart rate giving you a stronger aerobic workout, and breathe more b=deeply due to the intensity of the workout.
Either a pedometer or a treadmill so the pedometer will track the activity levels which she can determine to do more or less. or the treadmill so she can walk to increase her activity levels
