[NewJerseyJoe]

Try high-intensity interval training -- your body will start burning fat like a blast furnace. It has the added side-benefit of acting as a natural appetite suppressant.

There are many places to learn about this -- here are some links for you to get started:

http://en.wikipedia.org/wiki/High-intensity_interval_training
http://www.readysetgofitness.com
http://www.intervaltraining.net/hiit.html
http://www.hiitsource.com
http://www.bodybuilding.com/fun/bbinfo.php?page=HIIT
http://www.askmen.com/sports/bodybuilding_100/135_fitness_tip.html

[wintertime]

People who are normally thing are thinking about or doing “high intensity interval training.”

[wintertime]

That should read:

People who are normally thin are NOT thinking about or especially doing high intensity training. They simply living normal lives.

[Faith]

Thanks for sharing the links. Twenty minutes 3X per week should be manageable for most people.