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Unhealthy Foods may cause addiction

Health Diet Addiction 2010

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#1 sierraleone

sierraleone

    All things Great and Mischievous

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Posted 30 March 2010 - 04:39 PM

http://www.cnn.com/2...rain/index.html

Quote

A new study in rats suggests that high-fat, high-calorie foods affect the brain in much the same way as cocaine and heroin. When rats consume these foods in great enough quantities, it leads to compulsive eating habits that resemble drug addiction, the study found.
Doing drugs such as cocaine and eating too much junk food both gradually overload the so-called pleasure centers in the brain....

Eventually the pleasure centers "crash," and achieving the same pleasure--or even just feeling normal--requires increasing amounts of the drug or food....

In the study, published in the journal Nature Neuroscience, Kenny and his co-author studied three groups of lab rats for 40 days. One of the groups was fed regular rat food. A second was fed bacon, sausage, cheesecake, frosting, and other fattening, high-calorie foods--but only for one hour each day. The third group was allowed to pig out on the unhealthy foods for up to 23 hours a day.

Not surprisingly, the rats that gorged themselves on the human food quickly became obese. But their brains also changed. By monitoring implanted brain electrodes, the researchers found that the rats in the third group gradually developed a tolerance to the pleasure the food gave them and had to eat more to experience a high.

They began to eat compulsively, to the point where they continued to do so in the face of pain. When the researchers applied an electric shock to the rats' feet in the presence of the food, the rats in the first two groups were frightened away from eating. But the obese rats were not....

In previous studies, rats have exhibited similar brain changes when given unlimited access to cocaine or heroin. And rats have similarly ignored punishment to continue consuming cocaine, the researchers note.
...
Although he acknowledges that his research may not directly translate to humans, Kenny says the findings shed light on the brain mechanisms that drive overeating and could even lead to new treatments for obesity.
"If we could develop therapeutics for drug addiction, those same drugs may be good for obesity as well," he says.

They didn't mention in this article, but in other ones I've read when they took away the unhealthy food and gave the good food back to the third group of rats, they would rather starve, they weren't up to their old consumption of healthy food for quite a while after the unhealthy food was taken away.
Rules for surviving an Autocracy:

Rule#1: Believe the Autocrat.
Rule#2: Do not be taken in by small signs of normality.
Rule#3: Institutions will not save you.
Rule#4: Be outraged.
Rule#5: Don't make compromises.
Rule#6: Remember the future.
- Masha Gessen
Source: http://www2.nybooks....r-survival.html



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