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TED English talk: Why doesn't dieting work?
Introduction: In the United States, 80% of girls started dieting at the age of 10. Neurologist Sandra

Aamodt tells how the brain controls our bodies according to his own personal experience. Why does dieting lose weight have no effect? Come and listen to her!

Three and a half years ago, I made one of the best decisions of my life. be like

My new year's resolution, I give up dieting and stop worrying about my weight,

Learned to eat with heart. Now I eat when I'm hungry, and I've lost weight 10

Pounds.

This is when I 13 years old, I started my first diet. I looked at that picture.

Now, I don't think you need to go on a diet, you need fashion consultation.

But I think I need to lose weight when I recover.

Of course I blame myself. For the next thirty years, I went on and off

Diet. No matter how hard I try, the weight I lost will always bounce back. I'm sure.

Many of you know this feeling.

As a neuroscientist, I wonder, why is it so difficult? Obviously, how much is it?

Your weight depends on how much you eat and how much energy you consume. What is the most

People don't realize that hunger and energy use are controlled by the brain.

Most of the time you don't realize it. Your brain does a lot of work behind it.

This is a good thing, because your consciousness-how to say it?

Is this polite? -easily distracted. Good, you don't have to do this.

Remember to take a deep breath when you watch a movie. You won't forget how

Walking is because you are thinking about what to eat for dinner.

In any case, your brain has its own judgment criteria.

You consciously believe. This is called your set point, but it is misleading.

Item, because it is actually a range of about 10 or 15 pounds. You can use

Lifestyle choice, move your weight up and down within this range, but

It's much harder to stay out of it Hypothalamus, a part of the brain

There are more than a dozen chemical signals in the nervous system that regulates weight.

Your brain tells your body to gain weight, and a dozen others tell you.

The body loses it, and this system is like a thermostat, responding to signals.

From the body by regulating hunger, activity and metabolism, to maintain weight.

Stable with the change of conditions. That's what thermostats do, right? It keeps

The temperature in your room is the same as the weather outside. Now you can.

Try to open the window in winter to change the indoor temperature.

But this will not change the thermostat setting, it will respond.

Kick the stove to warm this place up.

Your brain works in exactly the same way, by using

Powerful tools push your body back to what it thinks is normal. If you lose one

A lot of weight, your brain reacts as if you are hungry, no matter you.

When you are fat or thin at first, your brain reacts exactly the same. We will.

I like to think that your brain can tell you whether you need to lose weight or not.

But it can't. If you really lose a lot of weight, you will become hungry, yours

Muscles consume less energy. Dr Rudy Lebel of Columbia University found that.

People who lose 10% will burn 250 to 400 calories.

Less because their metabolism is suppressed. That's a lot of food. this means

A successful dieter must always eat less than others.

Always thin, same weight.

From an evolutionary point of view, your body's resistance to losing weight

That makes sense. When food is scarce, the survival of our ancestors depends on.

Save energy and regain weight when there is food.

Protect them from the next shortage. In the course of human history,

Hunger has always been a bigger problem than overeating. This may explain

Sad fact: Setpoints can go up, but rarely go down. Now, if your

Mother once mentioned that life is unfair, and she is such a person.

Talk about. A successful diet won't lower your set point. flat

After you lose weight for seven years, your brain will keep.

Trying to win you back. If the weight loss is due to a long time

Famine, this will be a wise response. In our modern drive-in world.

Hamburg is not very good for most of us. The difference between

The past of our ancestors and our rich present are Dr. Yoni.

Freehof of the University of Ottawa wants to take some of his patients with him.

Back to the time when food was scarce, that's why

Changing the food environment will really be the most effective solution

To obesity.

Sadly, temporary weight gain may become permanent. If you stay high.

Losing weight for too long may be a matter of years for most of us, and your brain may

That this is the new normal.

Psychologists divide eaters into two categories, one is people who depend on food.

Hunger, like those who try to control their diet through willpower, most of them

Dieter. Let's call them intuitive eaters and controlled eaters. interesting

The fact is that intuitive diners are less likely to be overweight, and they spend.

There is less time to think about food. Dieters are more vulnerable.

The response to advertisements, oversize and satiety is overeating.

Buffet. A little indulgence, such as eating a spoonful of ice cream, is even more

It may lead to the control of overeating. This is especially true for children.

Vulnerable to the cycle of dieting and overeating.