"Track your exercise by selecting an activity from a large exercise database. Input the minutes spent exercising, and Diet & Exercise Assistant will automatically calculate the calories you burned. If an exercise is not in the database, you can log your own user-defined exercises. Use the Logbook to quickly summarize the calories you have consumed from food and subtract the calories you expend through exercise, at work, and while resting. The total is then conveniently compared to your goal for the day."