It is recommended to start off with 20-60 minutes of cardiovascular activity 5-7 days per week. These guidelines are appropriate for improvements in health and daily living and as a beginner, prepare you for greater demands of cardio training in the future. When performing this type of cardio training, it is recommended that you maintain a low to moderate intensity level of 60 - 75% of your maximum heart rate. Should the initial duration and intensity seem too taxing for you at first, you can reduce the duration to 10 minutes and perform two shorter bouts of cardio throughout the day until your endurance is better able to support the previously mentioned recommendations. In order to make sure that your are hitting your appropriate intensity levels and able to track your progress, it is recommended you incorporate the use of a heart rate monitor for feedback.