It's a very interesting read. It was made by the creator of Autodesk. He basically tried to work out a logical way to monitor and control your weight.

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I'm an engineer. I decided to approach weight loss as an engineering problem.

I studied the human body the way I'd tackle a misbehaving electronic circuit or computer program: develop a model of how it works, identify the controls that affect it, and finally adjust those controls to set things aright.

It worked. In less than a year, totally under my own direction and without any drugs or gimmicks, I went from 215 pounds to 145 and achieved physical fitness. Since then, I've kept my weight right where I want it with none of the yoyo swings I'd suffered in the past. All of this was accomplished in less than 15 minutes a day, and without any significant changes in the way I choose to live my life.

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[download a life]