Latest gadgets give diets, workouts a high-tech boost

Friday, January 20, 2012 - 13:30 in Mathematics & Economics

The math formula for weight loss isn't hard to understand. There's calorie input and calorie output - what you eat and what you burn. When the energy input is less than the output, you lose weight. But as simple as it looks on paper, putting that formula into practice can be maddeningly complicated.

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