Wednesday November 20, 2019

Study Says, Limiting Mealtimes Increases Motivation for Exercise

Maintaining a healthy eating routine, with regular mealtimes or fasting, could also encourage motivation for exercise in overweight people

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Exercise
The study suggested that a surge in levels of the appetite-promoting hormone - ghrelin, after a period of fasting prompted mice to initiate voluntary Exercise. PIxabay

Limiting access to food might increase levels of hormone – ghrelin, which might also increase your motivation to exercise, said a new research.

The study, published in the Journal of Endocrinology suggested that a surge in levels of the appetite-promoting hormone – ghrelin, after a period of fasting prompted mice to initiate voluntary exercise.

These novel findings indicate that better diet control, for example limiting food intake to mealtimes or fasting intermittently, could help overweight people maintain a more effective exercise routine, lose weight and avoid debilitating complications such as diabetes and heart disease.

“Our findings suggest that hunger, which promotes ghrelin production, may also be involved in increasing motivation for voluntary exercise when feeding is limited,” said author Yuji Tajiri from the Kurume University in Japan.

“Therefore, maintaining a healthy eating routine, with regular mealtimes or fasting, could also encourage motivation for exercise in overweight people,” Tajiri said.

Exercise
Findings suggest that hunger, which promotes ghrelin production, may also be involved in increasing motivation for voluntary Exercise when feeding is limited. Pixabay

Ghrelin, often referred to as the ‘hunger hormone’, stimulates appetite through actions on the brain reward circuitry that increases motivation to eat.

It has also been reported to be essential for endurance exercise by increasing metabolism to meet the energy demands of prolonged exercise.

Although previous studies have suggested a relationship between ghrelin and exercise, it was not known whether the hormone levels have a direct effect on motivation to exercise.

In this study, the research team investigated the relationship between exercise and the hormone levels in mice.

Food intake and wheel-running activity were compared in mice given free access to food with those fed only twice a day for a limited time.

Although both groups ate a similar amount of food, the restricted mice ran significantly more.

Exercise
Although previous studies have suggested a relationship between ghrelin and exercise, it was not known whether the hormone levels have a direct effect on motivation to Exercise. Pixabay

Mice genetically altered to have no ghrelin and on the restricted feeding diet, ran less than the mice which were given free access, however, this could be reversed by administering the hormone.

Furthermore, mice were given free access to food and given ghrelin also ran significantly more.

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These findings suggest that ghrelin might play an important role in the motivation for both feeding and exercise, in response to restricted eating plans. (IANS)

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Here’s Why Too Much Ultra-Processed Food Can Deteriorate your Heart Health

Ultra-processed foods are made entirely or mostly from substances extracted from foods, such as fats

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Ultra-Processed Food
Examples of Ultra-Processed Food include soft drinks, packaged salty snacks, cookies, cakes, processed meats, chicken nuggets, powdered and packaged instant soups and many items often marketed as "convenience foods." Wikimedia Commons

If you are eating too much Ultra-Processed Food, stop consuming it now as researchers have found that eating fast food is linked to lower heart health.

“Eating ultra-processed foods often displaces healthier foods that are rich in nutrients, like fruit, vegetables, whole grains and lean protein, which are strongly linked to good heart health,” said study research Zefeng Zhang from Centers for Disease Control and Prevention (CDC) in the US.

“In addition, ultra-processed foods are often high in salt, added sugars, saturated fat and other substances associated with increasing the risk of heart disease,” Zhang added.

Ultra-processed foods are made entirely or mostly from substances extracted from foods, such as fats, starches, hydrogenated fats, added sugar, modified starch and other compounds and include cosmetic additives such as artificial flavours, colours or emulsifiers.

Examples include soft drinks, packaged salty snacks, cookies, cakes, processed meats, chicken nuggets, powdered and packaged instant soups and many items often marketed as “convenience foods.”

Using data from the National Health and Nutrition Examination Survey (NHANES) collected between 2011 and 2016, researchers reviewed the results from 13,446 adults, 20 years of age and older, who completed a 24-hour dietary recall and answered questions about their cardiovascular health.

Ultra-Processed Food
If you are eating too much Ultra-Processed Food, stop consuming it now as researchers have found that eating fast food is linked to lower heart health. Pixabay

Researchers have found that for every five per cent increase in calories from ultra-processed foods a person ate, there was a corresponding decrease in overall cardiovascular health.

Adults who ate approximately 70 per cent of their calories from ultra-processed foods were half as likely to have ‘ideal’ cardiovascular health, compared with people who ate 40 per cent or less of their calories from ultra-processed foods.

“This study underscores the importance of building a healthier diet by eliminating foods such as sugar-sweetened beverages, cookies, cakes and other processed foods,” said Donna Arnett from the University of Kentucky in the US.

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The study is scheduled to be presented at the American Heart Association’s Scientific Sessions 2019 from November 16-18 in Philadelphia, US. (IANS)