There is a big difference between exercise and a workout. A workout is not fun! Exercise, on the other hand, can be enjoyable. Exercise is any activity that gets your body moving, such as, walking, playing golf, tennis, etc. A workout should be exhausting! Example: Burst Training or Intervals. A workout should involve intense anaerobic exercise that builds strength. It can be more “cardio” related, such as: sprinting; spinning; elliptical; step/stair machine, etc. Or, it can be more strength related, such as: weights; resistance equipment; isometrics; body-weight resistance (push-ups, sit-ups, etc.) Exercises are done for a set period of time verses counting reps (example: 30-seconds), with minimal rest between. If you are working out with sufficient intensity you will not be able to do so for an extended period of time. With this challenge, aim for short workouts of 5 to 10 minutes, totaling 50 minutes for the week.