Can’t Control Junk Food?

FRIDAY, May 1 (HealthDay News) — Two areas of the brain work together to give some people the self-control to reject unhealthy foods, a new study has found.

California Institute of Technology researchers used MRI to scan the brains of volunteers as they looked at photos of dozens of types of foods and decided which ones they’d like to eat. They found significant differences in the brain activity between people who had self-control in terms of making food choices and those with no self-control.

Previous research has shown that an area of the brain called the ventromedial prefrontal cortex (vmPFC) is involved in all value-based decisions. When vmPFC activity decreases, a person will probably reject an item, whereas increased activity means they’ll probably choose it.

The new study found that in people with no self-control, the vmPFC seemed to take into consideration only the taste of a food.

“In the case of good self-controllers, however, another area of the brain — called the dorsolateral prefrontal cortex (DLPFC) — becomes active and modulates the basic value signals so that the self-controllers can also incorporate health considerations into their decisions,” principal investigator Antonio Rangel, an associate professor of economics, said in a CalTech news release.

The researchers noted that the vmPFC is active during every decision and that the DLPFC is more active when a person is using self-control.

“This, ultimately, is one reason why self-controllers can make better choices,” Rangel said.

The study appears in the May 1 issue of Science.

Source: http://www.nlm.nih.gov/medlineplus/news/fullstory_83698.html

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Weight Loss Information From Around The Web

Here is some weight loss information gathered from around the web.  I am hoping to make this into a weekly post to bring you relavent news and information about weight loss.  I’ll present each post with a small snippet from the article.

• http://www.dailymail.co.uk/femail/article-1189956/Why-crash-dieting-DOES-work-Surprise-evidence-suggests-best-way-slim.html“Here’s a sobering thought: beach weather is nearly here, and the diet you’ve been meaning to embark on since January remains in the planning phases.

  You really don’t want to expose those extra pounds to the world, but you do want to put on your swimsuit and feel OK about it. A crash diet seems to be your only option, but aren’t crash diets unhealthy – not to mention ineffective – after the first week? Not if you approach them correctly.

  Despite what many nutritionists have preached for years, low-calorie diets can be healthy if you do them right, and can work wonders on pounds and inches in just a few weeks.”

• http://www.canada.com/health/Weight+loss+lifestyle/1628412/story.html

  “Losing weight is all about choices, whether it’s food choices or lifestyle choices,” says Rick Sgabellone, an Ottawa father of two who has struggled for years to keep his weight under control.

• http://www.medicalnewstoday.com/articles/151985.php

  The twin epidemics of obesity and type 2 diabetes will continue to fuel an explosion in heart failure, already the world’s most prevalent chronic cardiovascular disease, according to John McMurray, professor of cardiology at the Western Infirmary, Glasgow, and President of the Heart Failure Association. He reported that around one-third of patients with heart failure have evidence of diabetes, and for them the outlook is very serious. For doctors, he added, effective treatment is “very difficult”.

Here is to your health!

Mohamed

Technorati Tags: diet, lose weight, Weight Loss, weight loss articles, weight loss information