TED演讲：为什么节食减肥没有效果

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　　减肥是永远的课题，一些人为了减肥绞尽脑汁。节

食，跑步，做瑜伽似乎成为了减肥的必修课在美国，80%

的女孩在她们 10 岁的时候便开始节食。神经学家 Sandra

Aamodt 结合自己的亲身经历，讲述大脑是如何控制我们的

身体的。节食减肥为何没效果?来听听她的说法吧!接下来

由小编为大家推荐 TED 演讲：为什么节食减肥没有效果，

希望对你有所帮助!

　　ted 演讲：为什么节食减肥没有效果(英语)

　　Three and a half years ago, I made one of the best

decisions of my life. As my New Year's resolution, I gave

up dieting, stopped worrying about my weight, and learned

to eat mindfully. Now I eat whenever I'm hungry, and I've

lost 10 pounds.

　　This was me at age 13, when I started my first diet.

I look at that picture now, and I think, you did not need

a diet, you needed a fashion consult. (Laughter) But I

thought I needed to lose weight, and when I gained it

back, of course I blamed myself. And for the next three

decades, I was on and off various diets. No matter what I

tried, the weight I'd lost always came back. I'm sure

many of you know the feeling.

　　As a neuroscientist, I wondered, why is this so hard?

Obviously, how much you weigh depends on how much you eat

and how much energy you burn. What most people don't

realize is that hunger and energy use are controlled by

the brain, mostly without your awareness. Your brain does

a lot of its work behind the scenes, and that is a good

thing, because your conscious mind -- how do we put this

politely? -- it's easily distracted. It's good that you

don't have to remember to breathe when you get caught up

in a movie. You don't forget how to walk because you're

thinking about what to have for dinner.

　　Your brain also has its own sense of what you should

weigh, no matter what you consciously believe. This is

called your set point, but that's a misleading term,

because it's actually a range of about 10 or 15 pounds.

You can use lifestyle choices to move your weight up and

down within that range, but it's much, much harder to

stay outside of it. The hypothalamus, the part of the

brain that regulates body weight, there are more than a

dozen chemical signals in the brain that tell your body

to gain weight, more than another dozen that tell your

body to lose it, and the system works like a thermostat,

responding to signals from the body by adjusting hunger,

activity and metabolism, to keep your weight stable as

conditions change. That's what a thermostat does, right?

It keeps the temperature in your house the same as the

weather changes outside. Now you can try to change the

temperature in your house by opening a window in the

winter, but that's not going to change the setting on the

thermostat, which will respond by kicking on the furnace

to warm the place back up.

　　Your brain works exactly the same way, responding to

weight loss by using powerful tools to push your body

back to what it considers normal. If you lose a lot of

weight, your brain reacts as if you were starving, and

whether you started out fat or thin, your brain's

response is exactly the same. We would love to think that

your brain could tell whether you need to lose weight or

not, but it can't. If you do lose a lot of weight, you

become hungry, and your muscles burn less energy. Dr.

Rudy Leibel of Columbia University has found that people

who have lost 10 percent of their body weight burn 250 to

400 calories less because their metabolism is suppressed.

That's a lot of food. This means that a successful dieter

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摘要：

　　减肥是永远的课题，一些人为了减肥绞尽脑汁。节食，跑步，做瑜伽似乎成为了减肥的必修课在美国，80%的女孩在她们10岁的时候便开始节食。神经学家SandraAamodt结合自己的亲身经历，讲述大脑是如何控制我们的身体的。节食减肥为何没效果?来听听她的说法吧!接下来由小编为大家推荐TED演讲：为什么节食减肥没有效果，希望对你有所帮助!　　ted演讲：为什么节食减肥没有效果(英语)　　Threeandahalfyearsago,Imadeoneofthebestdecisionsofmylife.AsmyNewYear'sresolution,Igaveupdieting,stoppedworry...

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