Monday December 10, 2018

Being Hungry Might Increase Your Stress Level

The findings showed that the animals experienced stress and depressed mood when they were hypoglycemic

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Sudden drop in glucose when you are hungry can have a negative impact on your mood, suggests new research.

The researchers wanted to investigate whether chronic, long-term hypoglycemia — low blood sugar — is a risk factor for developing depression-like behaviours.

“We found evidence that a change in glucose level can have a lasting effect on mood,” said Professor Francesco Leri from University of Guelph in Ontario, Canada.

Published in the journal Psychopharmacology, the study examined the impact of a sudden glucose drop on emotional behaviour by inducing hypoglycemia in rats.

The rats were injected with a glucose metabolism blocker causing them to experience hypoglycemia.

They were then placed in a specific chamber. On a separate occasion, they were injected water and placed in a different chamber.

When given the choice of which chamber to enter, they actively avoided the chamber where they experienced hypoglycemia.

stress
Representational image. Pixabay

“This type of avoidance behaviour is an expression of stress and anxiety,” said Leri.

“The animals are avoiding that chamber because they had a stressful experience there. They don’t want to experience it again,” she added.

The researchers tested blood levels of the rats after they experienced hypoglycemia and found more corticosterone — an indicator of physiological stress.

The rats also appeared more sluggish when given the glucose metabolism blocker.

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The findings showed that the animals experienced stress and depressed mood when they were hypoglycemic, Leri stated.

“When people think about negative mood states and stress, they think about the psychological factors, not necessarily the metabolic factors. But we found poor eating behaviour can have an impact,” lead researcher Thomas Horman from University of Guelph said. (IANS)

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U.N. Food And Agriculture Organisation Renews Its Policy To Achieve ‘Zero Hunger’

Increasing farm output beyond sustainable levels can cause permanent damage to ecosystems, the report said.

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Children, Hunger
A severely malnourished boy rests on a hospital bed at the Aslam Health Center, Hajjah, Yemen. VOA

Feeding a hungry planet is growing increasingly difficult as climate change and depletion of land and other resources undermine food systems, the U.N. Food and Agricultural Organization said Wednesday as it renewed appeals for better policies and technologies to reach “zero hunger.”

Population growth requires supplies of more nutritious food at affordable prices, but increasing farm output is hard given the “fragility of the natural resource base” since humans have outstripped Earth’s carrying capacity in terms of land, water and climate change, the report said.

About 820 million people are malnourished. The FAO and International Food Policy Research Institute released the report at the outset of a global conference aimed at speeding up efforts to achieve zero hunger around the world.

Hunger
A Papuan child suffering from malnutrition lies in a hospital bed for treatment in Agats, the capital of Asmat district in Indonesia’s easternmost Papua province. VOA

“The call for action is very clear. It is possible in our lifetime and it is also realistic to end hunger and malnutrition,” Inonge Wina, vice president of Zambia, told the gathering.

Food security remains tenuous for many millions of people who lack access to affordable, adequately nourishing diets for a variety of reasons, the most common being poverty.

But it’s also endangered by civil strife and other conflicts. In Yemen, where thousands of civilians have died in airstrikes by a Saudi-led coalition, the aid group Save the Children says 85,000 children under 5 may have died of hunger or disease in the civil war.

hunger, health care
Malnourished and displaced Somali children sit in a tent in their camp on the outskirts of Mogadishu, Somalia. VOA

In Afghanistan, severe drought and conflict have displaced more than 250,000 people, according to UNHCR, the U.N. refugee agency.

FAO Director-General Jose Graziano da Silva noted that the number of hungry and malnourished people in the world has risen to levels last seen a decade ago.

“After decades of gains in fighting hunger, this is a serious setback and FAO and the U.N. sister agencies, together with member governments and other partners, are all very concerned,” Graziano da Silva said in a videotaped address to the conference.

Hunger is still most severe in Africa, but the largest number of undernourished people live in the Asia-Pacific region, the report said. It said good public policies and technology are the keys to improving the situation.

World Hunger, WFP, Hunger
Gatdin Bol, 65, who fled fighting and now survives by eating fruit from the trees, sits under a tree in the town of Kandak, South Sudan. VOA

The FAO estimates that global demand for food will jump by half from 2013 to 2050. Farmers can expand land use to help make up some of the difference, but that option is constrained in places like Asia and the Pacific and urbanization is eating up still more land that once may have been used for agriculture.

Also Read: Researchers Develop New Test To Detect E.Coli In Food Quickly

Increasing farm output beyond sustainable levels can cause permanent damage to ecosystems, the report said, noting that it often causes soil erosion, pollution with plastic mulching, pesticides and fertilizers, and a loss of biodiversity.

China destroys 12 million tons of tainted grain each year, at a loss of nearly $2.6 billion, according to the report. (VOA)