Friday March 22, 2019

Study Identifies Brain Circuits That Cause Fatty Food Craving

Several behavioural studies have demonstrated that denying certain foods while on a diet causes increased craving and motivation for that food. 

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Study Identifies Brain Circuits That Cause Fatty Food Craving

Do you feel the urge to binge on golden hot chips, cheesy pizza, crispy chicken, heartwarming hamburgers, all when on a diet? Researchers have identified new brain circuits that may act as a brake on binge eating and junk food craving.

In the study, led by a team from the University of Texas at Galveston on rats who had spent a month eating a low-fat diet, the team successfully inhibited the fatty food seeking behaviours.

“Craving for foods high in fat — this includes many junk foods — is an important part of obesity and binge eating,” said Jonathan Hommel, Assistant Professor at the University of Texas in the US.

Cholesterol -- a molecule normally linked with cardiovascular diseases -- may also play an important role in the onset and progression of Alzheimer's disease, researchers have found.
Junk Food is highly rich in Cholesterol, pixabay

“When trying to lose weight people often strive to avoid fatty foods, which ironically increases motivation and craving for these foods and can lead to overeating. Even worse, the longer someone abstains from fatty foods, the greater the cravings,” Hommel added.

Several behavioural studies have demonstrated that denying certain foods while on a diet causes increased craving and motivation for that food.

However, the brain mechanisms that lead to this type of overeating are not known.

For the study, published in the journal Behavioural Brain Research, half of the rats underwent a surgical procedure that blocked the effects of a brain chemical called neuromedin U receptor 2 within a region of the brain that regulates food intake.

When trying to lose weight people often strive to avoid fatty foods, which ironically increases motivation and craving for these foods and can lead to overeating. E    Pixabay
 Researchers have identified new brain circuits that may act as a brake on binge eating and junk food craving. Pixabay

The other half of the rats did not receive this treatment.

Also Read: Avoid High Calories just By Smelling Such Food For Longer Than Two Minutes
After surgical recovery, the rats who had been treated did not work nearly as hard for fatty treats as their unaltered counterparts did.

“While our findings are only the first step in a long process from the scientific lab to the doctor’s office, we are planning to develop new drugs to help curb those cravings,” Hommel said. (IANS)

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Diet Drinks Increase Stroke Chances in Postmenopausal Women

The results in post-menopausal women may not be generalisable to men or younger women. 

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The results in post-menopausal women may not be generalisable to men or younger women. Pixabay

Are diet drinks your choice? Beware, your heart could be at risk. A new study suggests that drinking diet drinks was associated with an increased risk of having a stroke among post-menopausal women, researchers say.

The stroke is was caused by a blocked artery, especially small arteries.

The study, published in the journal Stroke, showed that compared with women who consumed diet drinks less than once a week or not at all, women who consumed two or more artificially sweetened beverages per day were 23 per cent more likely to have a stroke, 31 per cent more likely to have ischemic stroke, and 29 per cent were at risk of developing heart disease (fatal or non-fatal heart attack).

In addition, there was a 16 per cent risk of deaths from any cause.

 

 

diet drinks
A new study suggests that drinking diet drinks was associated with an increased risk of having a stroke among post-menopausal women, researchers say. Pixabay

Furthermore, stroke risks more than doubled in women without previous heart disease or diabetes and obese women without previous heart disease or diabetes, findings revealed.

“Many well-meaning people, especially those who are overweight or obese, drink low-calorie sweetened drinks to cut calories in their diet. Our research and other observational studies have shown that artificially-sweetened beverages may not be harmless and high consumption is associated with a higher risk of stroke and heart disease,” said lead author Yasmin Mossavar-Rahmani, Associate Professor at the Albert Einstein College of Medicine in the US.

For the study, researchers included 81,714 post-menopausal women aged 50-79 years.

The results in post-menopausal women may not be generalisable to men or younger women.

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Furthermore, stroke risks more than doubled in women without previous heart disease or diabetes and obese women without previous heart disease or diabetes. Pixabay

Also Read: Top 3 Factors That Play a Major Role in Fertility Issues in Women

“The American Heart Association suggests water as the best choice for a no-calorie beverage,” suggested Rachel K. Johnson, Professor at the University of Vermont in the US.

“Since long-term clinical trial data are not available on the effects of low-calorie sweetened drinks and cardiovascular health, given their lack of nutritional value, it may be prudent to limit their prolonged use,” Johnson added. (IANS)