Question:

I keep hearing how important exercise is for weight control, but when I see the number of calories that exercise burns, I feel discouraged. Is it worth it?

Answer:

It can be discouraging when you look at a chart that says one hour of walking at a rate of, say, 5.6 Kilometer (3.5 miles per hour) burns only 300 calories and that 30 minutes of aerobics burns only about 250.

Instead, look at the cumulative effects and how those burned calories add up over time. For instance, if you walked for one hour five times a week and ate the same as you do now, you could lose about 9 kilograms (20 pounds) in a year's time without dieting.
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