Saturday December 7, 2019

Proper Rest can Help in Lowering PTSD Symptoms: Study

Study says that rest can reduce the levels of Post Traumatic Stress Disorder (PTSD)

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Rest
A period of Rest after a traumatic event can reduce the subsequent development of involuntary 'memory intrusions', one of the symptoms in post-traumatic stress disorder (PTSD). Pixabay

A period of rest following a traumatic event could reduced the subsequent development of involuntary ‘memory intrusions’, one of the hallmark symptoms in post-traumatic stress disorder (PTSD), a new study said.

The study, published in the journal Scientific Reports, suggested that memory disturbances in PTSD might be ameliorated by increased ‘consolidation’ (a process by which memories are stored and contextualised), which could shed new light on treatment and prevention.

“Our findings contribute to a better understanding of the mechanisms that are at play when some people develop memory disturbances following trauma while others do not,” said the study’s lead author Lone Horlyck from the University College London.

Trauma
Research Says that strengthening of contextual memory system through rest is beneficial in preventing memory intrusions caused by trauma. Pixabay

For the findings, the researchers presented 85 participants with emotionally negative videos, followed by either a period of wakeful rest or a simple control task, where participants were required to pay attention to numbers on a screen.

The videos comprised highly emotional content, such as badly injured people or serious accidents.

The study found that participants who had a period of rest following the viewing of negative videos reported fewer memory intrusions related to the videos over the following week.

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Specific brain systems can be Targetted to reduce development of PTSD through Rest. Pixabay

Rest and certain phases of sleep are known to increase processing in the hippocampus, a key region of the brain for memory, and which places memories in context.

According to the researchers, the results suggested that a strengthening of this contextual memory system was beneficial in preventing memory intrusions following trauma.

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“The results show that specific brain systems could be targeted to reduce development of PTSD and may explain why treatments that focus on re-exposure and integrating the trauma with other information are beneficial,” said the study’s senior author, Professor Neil Burgess. (IANS)

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Reduction in Air Pollution May Increase Life-Expectancy: Study

Findings of a Research indicate almost immediate and substantial effects on health outcomes followed reduced exposure to air pollution

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Pollution
Fortunately, reducing air Pollution can result in prompt and substantial health gains. Pixabay

Reductions in Air Pollution yielded fast and dramatic impacts on health-outcomes, as well as decreases in all-cause morbidity, a new study suggests.

The study, published in the journal Annals of the American Thoracic Society, reviewed interventions that have reduced air pollution at its source. It looked for outcomes and time to achieve those outcomes in several settings, finding that the improvements in health were striking.

Starting at week one of a ban on smoking in Ireland, for example, there was a 13 per cent drop in all-cause mortality, a 26 per cent reduction in ischemic heart disease, a 32 per cent reduction in stroke, and a 38 per cent reduction in chronic obstructive pulmonary disease (COPD). Interestingly, the greatest benefits in that case occurred among non-smokers.

“We knew there were benefits from pollution control, but the magnitude and relatively short time duration to accomplish them were impressive,” said lead author Dean Schraufnagel from the American Thoracic Society in the US.

“Our findings indicate almost immediate and substantial effects on health outcomes followed reduced exposure to air pollution. It’s critical that governments adopt and enforce WHO guidelines for air pollution immediately,” Schraufnagel added.

Pollution
Reductions in Air Pollution yielded fast and dramatic impacts on health-outcomes, as well as decreases in all-cause morbidity, a new study suggests. Pixabay

According to the researchers, In the US a 13-month closure of a steel mill in Utah resulted in reducing hospitalisations for pneumonia, pleurisy, bronchitis and asthma by half.

School absenteeism decreased by 40 per cent, and daily mortality fell by 16 per cent for every 100 µg/m3 PM10 (a pollutant) decrease.

Women who were pregnant during the mill closing were less likely to have premature births.

A 17-day ‘transportation strategy,’ in Atlanta, Georgia during the 1996 Olympic Games involved closing parts of the city to help athletes make it to their events on time, but also greatly decreased air pollution.

In the following four weeks, children’s visits for asthma to clinics dropped by more than 40 per cent and trips to emergency departments by 11 per cent. Hospitalizations for asthma decreased by 19 per cent.

WHO
Findings of the Study indicate almost immediate and substantial effects on health outcomes followed reduced exposure to air pollution. It’s critical that governments adopt and enforce WHO guidelines for air pollution immediately. Wikimedia Commons

Similarly, when China imposed factory and travel restrictions for the Beijing Olympics, lung function improved within two months, with fewer asthma-related physician visits and less cardiovascular mortality.

“Fortunately, reducing air pollution can result in prompt and substantial health gains. Sweeping policies affecting a whole country can reduce all-cause mortality within weeks,” Schraufnagel said.

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Local programmes, such as reducing traffic, have also promptly improved many health measures, said the study. (IANS)