Sunday July 21, 2019

Study Reveals Early Warning Signs of Eating Disorder

Eating disorders are anorexia nervosa, bulimia nervosa and binge eating disorder, among others

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People diagnosed with a disorder had higher rates of other conditions and of prescriptions in the years before their diagnosis. Pixabay

A large-scale study has revealed early warning signs that can predict eating disorder, giving doctors a better chance of detecting why people suffer from binge eating disorder.

The research by Wales-based Swansea University, published in the British Journal of Psychiatry, showed that people diagnosed with a disorder had higher rates of other conditions and of prescriptions in the years before their diagnosis.

Eating disorders are anorexia nervosa, bulimia nervosa and binge eating disorder, among others.

They predominantly affect women but also men. most people are diagnosed during adolescence and early adulthood. Eating disorders have the highest mortality of all mental illnesses, both from physical causes and from suicide.

Study, Warning, Eating Disorder
A large-scale study has revealed early warning signs that can predict eating disorder, giving doctors a better chance of detecting why people suffer. Pixabay

“I cannot emphasise enough the importance of detection and early intervention for eating disorders. Delays in receiving diagnosis and treatment are sadly common and also associated with poorer outcomes and great suffering,” said Dr Jacinta Tan, associate professor of psychiatry at Swansea University.

The research team, from Swansea University Medical School, examined anonymised electronic health records from GPs and hospital admissions in Wales. Nearly 15,558 people in Wales were diagnosed as having eating disorders between 1990 and 2017.

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“Eating disorders can have a devastating impact on individuals and their families so this study is very timely,” said Professor Keith Lloyd, chair of the Royal College of Psychiatrists Wales. (IANS)

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Warming Oceans may Reduce Sea Life by 17%,Says Study

If the world's greenhouse gas emissions stay at the present rate, that means a 17% loss of biomass

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This August 2017 photo provided by the U.S. Fish and wildlife service shows a water-run chinook salmon. VOA

The world’s oceans will likely lose about one-sixth of their fish and other marine life by the end of the century if climate change continues on its current path, a new study says.

Every degree Celsius (1.8 degrees Fahrenheit) that the world’s oceans warm, the total mass of sea animals is projected to drop by 5%, according to a comprehensive computer-based study by an international team of marine biologists. And that does not include effects of fishing.

If the world’s greenhouse gas emissions stay at the present rate, that means a 17% loss  of biomass – the total weight of all the marine animal life – by the year 2100, according to Tuesday’s study in the Proceedings of the National Academy of Sciences. But if the world reduces carbon pollution, losses can be limited to only about 5%, the study said.

“We will see a large decrease in the biomass of the oceans,” if the world doesn’t slow climate change, said study co-author William Cheung, a marine ecologist at the University of British Columbia. “There are already changes that have been observed.”

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The world’s oceans will likely lose about one-sixth of their fish and other marine life. VOA

While warmer water is the biggest factor, climate change also produces oceans that are more acidic and have less oxygen, which also harms sea life, Cheung said.

Much of the world relies on the oceans for food or livelihood, scientists say.

“The potential ramifications of these predicted losses are huge, not just for ocean biodiversity, but because people around the world rely on ocean resources,” said University of Victoria biology professor Julia Baum, who wasn’t part of the study but says it makes sense. “Climate change has the potential to cause serious new conflicts over ocean resource use and global food security, particularly as human population continues to grow this century.”

The biggest animals in the oceans are going to be hit hardest, said study co-author Derek Tittensor, a marine ecologist at the United Nations World Conservation Monitoring Center in England.

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“The good news here is that the main building blocks of marine life, plankton and bacteria may decline less heavily, the bad news is that those marine animals that we use directly, and care about most deeply, are predicted to suffer the most as climate change is working its way up the food chain,” co-author Boris Worm, a marine biologist at Dalhousie University in Canada, said in an email.

Tropical areas, already warm, will also see the biggest losses, Cheung said.

Scientists had already thought that climate change will likely reduce future ocean life, but past computer simulations looked at only part of the picture or used only one model. This study uses six different state-of-the-art computer models that give the best big picture look yet, Cheung said.

It is hard to separate past climate change impacts from those of fishing, but past studies have shown places where observed fish loss can be attributed to human-caused climate change, Chung added.

Hot Water, Study, Sea
Every degree Celsius (1.8 degrees Fahrenheit) that the world’s oceans warm, the total mass of sea animals is projected to drop by 5%. VOA

Tittensor pointed to lobsters off Maine and North Atlantic right whales as examples of creatures already being hurt by global warming hitting the ocean.

University of Georgia marine biologist Samantha Joye, who wasn’t part of the research, praised the study as meticulous and said it is also “an urgent call for action.”

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“Healthy oceans are required for planetary stability,” Joye said in an email. “Aggressive global action to slow climate change is a moral imperative.” (VOA)