A study, carefully tracked how much people ate and moved after starting to exercise, found that many of them failed to lose or even gained weight while exercising.
Physical activity consumes calories, and if we burn calories without replacing them or reducing our overall energy expenditure, we enter negative energy balance.
But human metabolisms are not always just and cogent, and multiple past studies have shown that most men and women who begin new exercise routines drop only about 30 percent or 40 percent as much weight as would be expected, given how many additional calories they are expending with exercise.
Scientists studying the issue agree that most of us compensate for the calories lost to exercise by eating more, moving less, or both. Our resting metabolic rates may also decline if we start to lose pounds. All of this shifts us back toward positive energy balance, otherwise known as weight gain.
So, people hoping to lose weight with exercise should pay close attention to what they eat and skip those last four bites, no matter how tempting
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