A team of academic cardiologists published a paper in the April 15, 2014 issue of the Journal of the American College of Cardiology, one of the world's most prestigious cardiology journals, entitled "Obesity and Cardiovascular Disease."
One of their conclusions is that: "Progressive declines in physical activity over five decades have occurred and have progressively caused the obesity epidemic." They support this conclusion with data showing that energy expenditure at work and doing household chores has decreased significantly over the last 50 years.
We burn fewer calories on the job and in household chores, and this decrease in caloric expenditure has not been matched by a decrease in caloric intake.
Humans, like every other animal on earth, adjust our energy intake to match our energy expenditure. In his wonderful myth-smashing book Good Calories, Bad Calories, Gary Taubes points out that tailors on average consume 2,500 calories and lumberjacks 4,500.
How could it be otherwise? Imagine an animal in which energy intake and energy expenditure are truly independent of one another. Maintaining a normal weight then becomes a matter of chance. But living organisms must be efficient to survive, and energy balance is at the very heart of this efficient functioning.
That's why it seldom works to tell someone who wants to lose weight to just increase energy expenditure. Just run around the block every morning before work and keep everything else the same and you'll lose weight. It's impossible to keep everything the same. The energy expenditure causes energy depletion, and our brains through a complex cascade of hormones cause us to be hungry and to eat. Even if one can resist the hunger, and most of the time this semi-starvation state cannot be resisted indefinitely, our bodies have other ways of matching energy supply and energy demand.
Use up all of your available energy on that run around the block and your body will find other ways to lower energy consumption, like turning down the little furnaces in your cells a bit or decreasing mental activity. You might not even feel the slight drop in temperature or the slowed brain functioning.
If these academic cardiologists are right and the energy we burn from work and household chores has dropped and we haven't increased our energy demands in other areas, a well-functioning organism should decrease its caloric intake automatically. That's how we do it with thirst and that's how we are supposed to do it with hunger.
Read more.- huffingtorpost.com
One of their conclusions is that: "Progressive declines in physical activity over five decades have occurred and have progressively caused the obesity epidemic." They support this conclusion with data showing that energy expenditure at work and doing household chores has decreased significantly over the last 50 years.
We burn fewer calories on the job and in household chores, and this decrease in caloric expenditure has not been matched by a decrease in caloric intake.
Humans, like every other animal on earth, adjust our energy intake to match our energy expenditure. In his wonderful myth-smashing book Good Calories, Bad Calories, Gary Taubes points out that tailors on average consume 2,500 calories and lumberjacks 4,500.
How could it be otherwise? Imagine an animal in which energy intake and energy expenditure are truly independent of one another. Maintaining a normal weight then becomes a matter of chance. But living organisms must be efficient to survive, and energy balance is at the very heart of this efficient functioning.
That's why it seldom works to tell someone who wants to lose weight to just increase energy expenditure. Just run around the block every morning before work and keep everything else the same and you'll lose weight. It's impossible to keep everything the same. The energy expenditure causes energy depletion, and our brains through a complex cascade of hormones cause us to be hungry and to eat. Even if one can resist the hunger, and most of the time this semi-starvation state cannot be resisted indefinitely, our bodies have other ways of matching energy supply and energy demand.
Use up all of your available energy on that run around the block and your body will find other ways to lower energy consumption, like turning down the little furnaces in your cells a bit or decreasing mental activity. You might not even feel the slight drop in temperature or the slowed brain functioning.
If these academic cardiologists are right and the energy we burn from work and household chores has dropped and we haven't increased our energy demands in other areas, a well-functioning organism should decrease its caloric intake automatically. That's how we do it with thirst and that's how we are supposed to do it with hunger.
Read more.- huffingtorpost.com
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