A smile is not just a smile, it can boost your memory!

May 6, 2014

Smile_memoryMay 6: A new study has revealed that humor and laughter can help lessen the damage that stress hormone cortisol has on memory and learning ability in the elderly. According to the researchers at Loma Linda University, there was a significant decrease in cortisol concentrations among both groups who watched a funny video and showed greater improvement in all areas of the memory assessment when compared to controls.

Gurinder Singh Bains said that their findings offer potential clinical and rehabilitative benefits that can be applied to wellness programs for the elderlyand the cognitive components, such as learning ability and delayed recall, become more challenging as people age and are essential to older adults for an improved quality of life.

The researchers said that the less stress one has the better their memory, as humor reduces detrimental stress hormones like cortisol that decrease memory hippocampal neurons, lowers the blood pressure, and increases blood flow and mood state.

The study revealed that the act of laughter-or simply enjoying some humor-increases the release of endorphins and dopamine in the brain, which provides a sense of pleasure and reward and the positive and beneficial neurochemical changes, in turn, make the immune system function better.

What are reasons for forgetfulness?

Forgetfulness, also called mild cognitive impairment, need not cause you much concern if it happens once in a while, but if you are forgettings quite often like Vicky, then it’s time to delve deeper into the cause of your forgetfulness.

Age, medical conditions, and emotional problems – all of these can contribute to forgetfulness. Most memory problems can be treated, so see your doctor if you or your loved one tend to forget stuff often. Here’s a 101 on the causes of forgetfulness.

1. Ageing

If you are in your 50s or 60s or maybe 70s, you may suddenly feel you are losing it. You stand in front of your refrigerator and you just don’t seem to recollect what it was that you wanted to take out of it. Or, you are discussing books with your friend and you are trying very hard to remember the title of the book you were reading the day before. These are the memory changes during normal ageing and you do not have to be alarmed, but they may also be the beginning symptoms of Alzheimer’s.

We start forgetting stuff because as we age the nerve impulses that travel between cells and cell membrane in the brain slows down. This decline in cognitive ability is not abrupt and progresses imperceptibly over decades, say scientists from the Johns Hopkins School of Medicine. It is natural and there is not much you can do to stop the progression of memory lapses other than try and socialize more and do things that help keep your memory sharp and you alert. Read more about 7 reasons for forgetfulness you might not now about.

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A smile is not just a smile, it can boost your memory!

May 6: A new study has revealed that humor and laughter can help lessen the damage that stress hormone cortisol has on memory and learning ability in the elderly. According to the researchers at Loma Linda University, there was a significant decrease in cortisol concentrations among both groups who watched a funny video and showed greater improvement in all areas of the memory assessment when compared to controls.

Gurinder Singh Bains said that their findings offer potential clinical and rehabilitative benefits that can be applied to wellness programs for the elderlyand the cognitive components, such as learning ability and delayed recall, become more challenging as people age and are essential to older adults for an improved quality of life. (Read: Eat spinach, almonds for increasing Vitamin E levels and preventing memory loss)

The researchers said that the less stress one has the better their memory, as humor reduces detrimental stress hormones like cortisol that decrease memory hippocampal neurons, lowers the blood pressure, and increases blood flow and mood state.

The study revealed that the act of laughter-or simply enjoying some humor-increases the release of endorphins and dopamine in the brain, which provides a sense of pleasure and reward and the positive and beneficial neurochemical changes, in turn, make the immune system function better.

What are reasons for forgetfulness?

Forgetfulness, also called mild cognitive impairment, need not cause you much concern if it happens once in a while, but if you are forgettings quite often like Vicky, then it’s time to delve deeper into the cause of your forgetfulness.

Age, medical conditions, and emotional problems – all of these can contribute to forgetfulness. Most memory problems can be treated, so see your doctor if you or your loved one tend to forget stuff often. Here’s a 101 on the causes of forgetfulness.

1. Ageing

If you are in your 50s or 60s or maybe 70s, you may suddenly feel you are losing it. You stand in front of your refrigerator and you just don’t seem to recollect what it was that you wanted to take out of it. Or, you are discussing books with your friend and you are trying very hard to remember the title of the book you were reading the day before. These are the memory changes during normal ageing and you do not have to be alarmed, but they may also be the beginning symptoms of Alzheimer’s.

We start forgetting stuff because as we age the nerve impulses that travel between cells and cell membrane in the brain slows down. This decline in cognitive ability is not abrupt and progresses imperceptibly over decades, say scientists from the Johns Hopkins School of Medicine. It is natural and there is not much you can do to stop the progression of memory lapses other than try and socialize more and do things that help keep your memory sharp and you alert. Read more about 7 reasons for forgetfulness you might not now about.

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Agencies
March 3,2020

Taking multiple courses of antibiotics within a short span of time may do people more harm than good, suggests new research which discovered an association between the number of prescriptions for antibiotics and a higher risk of hospital admissions.

Patients who have had 9 or more antibiotic prescriptions for common infections in the previous three years are 2.26 times more likely to go to hospital with another infection in three or more months, said the researchers.

Patients who had two antibiotic prescriptions were 1.23 times more likely, patients who had three to four prescriptions 1.33 times more likely and patients who had five to eight 1.77 times more likely to go to hospital with another infection.

"We don't know why this is, but overuse of antibiotics might kill the good bacteria in the gut (microbiota) and make us more susceptible to infections, for example," said Professor Tjeerd van Staa from the University of Manchester in Britain.

The study, published in the journal BMC Medicine, is based on the data of two million patients in England and Wales.

The patient records, from 2000 to 2016, covered common infections such as upper respiratory tract, urinary tract, ear and chest infections and excluded long term conditions such as cystic fibrosis and chronic lung disease.

The risks of going to hospital with another infection were related to the number of the antibiotic prescriptions in the previous three years.

A course is defined by the team as being given over a period of one or two weeks.

"GPs (general physicians) care about their patients, and over recent years have worked hard to reduce the prescribing of antibiotics,""Staa said.

"But it is clear GPs do not have the tools to prescribe antibiotics effectively for common infections, especially when patients already have previously used antibiotics.

"They may prescribe numerous courses of antibiotics over several years, which according to our study increases the risk of a more serious infection. That in turn, we show, is linked to hospital admissions," Staa added.

It not clear why hospital admissions are linked to higher prescriptions and research is needed to show what or if any biological factors exist, said the research team.

"Our hope is that, however, a tool we are working for GPs, based on patient history, will be able to calculate the risks associated with taking multiple courses of antibiotics," said Francine Jury from the University of Manchester.

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Agencies
July 7,2020

The World Health Organization (WHO) is reviewing a report that suggested its advice on the novel coronavirus needs updating after some scientists told the New York Times there was evidence the virus could be spread by tiny particles in the air.

The WHO says the Covid-19 disease spreads primarily through small droplets, which are expelled from the nose and mouth when an infected person breaths them out in coughs, sneezes, speech or laughter and quickly sink to the ground.

In an open letter to the Geneva-based agency, 239 scientists in 32 countries outlined the evidence they say shows that smaller exhaled particles can infect people who inhale them, the newspaper said on Saturday.

Because those smaller particles can linger in the air longer, the scientists - who plan to publish their findings in a scientific journal this week - are urging WHO to update its guidance, the Times said.

"We are aware of the article and are reviewing its contents with our technical experts," WHO spokesman Tarik Jasarevic said in an email reply on Monday to a Reuters request for comment.

The extent to which the coronavirus can be spread by the so-called airborne or aerosol route - as opposed to by larger droplets in coughs and sneezes - remains disputed.

Any change in the WHO's assessment of the risk of transmission could affect its current advice on keeping one-metre physical distancing. Governments, which also rely on the agency for guidance policy, may also have to adjust public health measures aimed at curbing the spread of the virus.

"Especially in the last couple of months, we have been stating several times that we consider airborne transmission as possible but certainly not supported by solid or even clear evidence," Benedetta Allegranzi, the WHO's technical lead for infection prevention and control, was quoted as saying in the New York Times.

WHO guidance to health workers, dated June 29, says that SARS-CoV-2, the virus that causes Covid-19, is primarily transmitted between people through respiratory droplets and on surfaces.

But airborne transmission via smaller particles is possible in some circumstances, such as when performing intubation and aerosol-generating procedures, it says.

Medical workers performing such procedures should wear heavy-duty N95 respiratory masks and other protective equipment in an adequately ventilated room, the WHO says.

Officials at South Korea's Centers for Disease Control said on Monday they were continuing to discuss various issues about Covid-19, including the possible airborne transmission. They said more investigations and evidence were needed.

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Agencies
January 12,2020

Washington D.C., Jan 12: Disruption in one night's sleep can lead to getting Alzheimer's disease, a recent study has stated.

The interruption in the sound sleep for a single night aggravates the level of tau protein in any young male's body, thus gives rise to the chances of developing the disease.

According to CNN, the report was published on Wednesday in neurology, the medical journal of the American Academy of Neurology.

"Our study focuses on the fact that even in young, healthy individuals, missing one night of sleep increases the level of tau in blood suggesting that over time, such sleep deprivation could possibly have detrimental effects," says study author Dr Jonathan Cedernaes, a neurologist at Uppsala University in Sweden.

As defined by the Alzheimer's Association, tau is the name of a protein that helps in stabilizing the internal structure of the brain's nerve cells. An abnormal build-up of tau protein in the body can end up in causing interior cells to fall apart and eventually developing Alzheimer's.

"When you get more of that deep sleep and you get the REM sleep in the normal amounts, that improves clearance of abnormal proteins which we think is good," said Mayo Clinic neurologist Dr Donn Dexter, not the study author but a fellow of the American Academy of Neurology.

Earlier studies have also shown that getting deprived of sleep can allow higher tau development and accumulation. Thus that poor sleep can hasten the development of cognitive issues.

Researchers caution that the study is small and inconclusive, and acknowledged they were not able to determine what the increased levels might mean.

"This study raises more questions than answers," agreed Dexter on a concluding note, sharing, "What this is telling us is that we have to dig more deeply. Despite something we do for a third of our lives, we know so little about sleep and we're learning every day, particularly when it comes to sleep and dementia."

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