subject: Exercise For A Healthy Body [print this page] Consistency in performing exercises makes the exercise itself effective. People who are overweight are required to do exercise for an hour during weekdays to make sure that they lose their excess weight and gain the amount of energy that they need. One example is by walking everyday. Walking is one of the most inexpensive ways of staying in shape. After getting in shape, you should walk for at least two hours everyday to reach most favorable body and health condition.