Tag Archives: brain health

5 Daily ways to brain and heart health

I know this looks utterly simple, but sometimes we overlook the simplest things/ideas that could be very helpful to us.  Please take a minute to go over this and ensure that you are, in fact, doing them.

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Emergency and Urgent Hospitalizations Linked to Accelerated Cognitive Decline in Seniors

My interest in cognition and cognitive decline, particularly in seniors brought me to this amazing study. I think it may give further import to the idea of maintaining a physically  active life into our senior years,

Emergency and urgent hospitalizations are associated with an increased rate of cognitive decline in older adults, report researchers at Rush University Medical Center. Results of their study, published in the Jan. 11, 2019, online issue of Neurology shows that hospitalization may be a more of a major risk factor for long-term cognitive decline in older adults than previously recognized.

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“We found that those who have non-elective (emergency or urgent) hospitalizations and who have not previously been diagnosed with dementia or Alzheimer’s disease had a rapid decline in cognitive function (i.e., thinking abilities) compared to the pre-hospital rates,” said Bryan James, PhD, an epidemiologist and in the Rush Alzheimer’s Disease Center and an assistant professor in the Rush Department of Internal Medicine. “By comparison, people who were never hospitalized and those who had elective hospitalizations did not experience the drastic decline in cognitive function.” Continue reading

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Social Exclusion Spurs Extremism in Those Vulnerable to Radicalization – Study

Summary: A neuroimaging study reveals the effects of social exclusion in the left inferior frontal gyrus. The study found social exclusion can spur extremist behaviors in people who are most vulnerable to radicalization. Source: Universitat Autònoma de Barcelona.

A study led by researchers from the Universitat Autònoma de Barcelona (UAB) and the Hospital del Mar Medical Research Institute (IMIM), in collaboration with other international institutions, explored the neural and behavioral relationships between sacred values, violent extremism and social exclusion in a group of young Moroccan men living and schooled in Catalonia and vulnerable to radicalization.

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A study conducted by the UAB and IMIM used neuroimaging techniques to show that social exclusion increases the number of ideological and group values worth fighting and dying for in populations vulnerable to radicalisation. The study focused on neural activity in a region of the brain related to rule retrieval and sacred values. NeuroscienceNews.com image is in the public domain.Sacred values are those perceived as non-negotiable, those which must be upheld at all costs. They also contain an identity component related to perceiving the person as a member of their reference group.

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Number of People with Dementia Has Doubled in Sixteen Years

The number of people living with dementia globally more than doubled between 1990 and 2016 from 20.2 million to 43.8 million, prompting researchers to call for more preventative action.

A new paper published in The Lancet Neurology also found that 22.3 per cent of healthy years lost due to dementia in 2016 were due to modifiable risk factors.

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Prepared by academics across multiple institutions and led by the University of Melbourne and the University of Washington, the paper looked at the global, regional and national burden of Alzheimer’s Disease and other dementias from 1990-2016.

The systematic analysis of the Global Burden of Disease Study 2016 found dementia was more common at older ages, with the prevalence doubling every five years over age 50. There was also significant potential for prevention.

“In our study, 22.3 per cent (11.8 – 35.1 per cent) of the total global disability-adjusted life years lost due to dementia in 2016 could be attributed to the four modifiable risk factors – being overweight, high blood sugar, consuming a lot of sugar sweetened beverages and smoking,” the authors said.

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Regular exercise changes the brain – Harvard

Eat less; move more; live longer remains the mantra of this blog. It is good to learn from Harvard, no less, that moving more also helps to keep our brain intact and functioning.

There are plenty of good reasons to be physically active. Big ones include reducing the odds of developing heart disease, stroke, and diabetes. Maybe you want to lose weight, lower your blood pressure, prevent depression, or just look better. Here’s another one, which especially applies to those of us (including me) experiencing the brain fog that comes with age: exercise changes the brain in ways that protect memory and thinking skills.

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In a study done at the University of British Columbia, researchers found that regular aerobic exercise, the kind that gets your heart and your sweat glands pumping, appears to boost the size of the hippocampus, the brain area involved in verbal memory and learning. Resistance training, balance and muscle toning exercises did not have the same results.

The finding comes at a critical time. Researchers say one new case of dementia is detected every four seconds globally. They estimate that by the year 2050, more than 115 million people will have dementia worldwide. Continue reading

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Drawing is Better than Writing for Memory Retention – Study

Regular readers know that I am a senior citizen, turning 79 next month. My family has a history of dementia in general and Alzheimer’s Disease in particular. SO, I am interested in anything that affects the brain and relates to brain function. This study at the University of Waterloo captured my attention.

Researchers report older adults who take up drawing are better able to retain new information than those who write notes.Source: University of Waterloo.

Older adults who take up drawing could enhance their memory, according to a new study.

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As part of a series of studies, the researchers asked both young people and older adults to do a variety of memory-encoding techniques and then tested their recall. NeuroscienceNews.com image is in the public domain.

Researchers from the University of Waterloo found that even if people weren’t good at it, drawing, as a method to help retain new information, was better than re-writing notes, visualization exercises or passively looking at images. Continue reading

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Yoga breathing exercises can sharpen your mind – Study

Breath-focused meditation and yogic breathing practices have numerous known cognitive benefits, including increased ability to focus, decreased mind wandering, improved arousal levels, more positive emotions, decreased emotional reactivity, along with many others. To date, however, no direct neurophysiological link between respiration and cognition has been suggested.

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The research shows for the first time that breathing – a key element of meditation and mindfulness practices – directly affects the levels of a natural chemical messenger in the brain called noradrenaline. This chemical messenger is released when we are challenged, curious, exercised, focused or emotionally aroused, and, if produced at the right levels, helps the brain grow new connections, like a brain fertilizer. The way we breathe, in other words, directly affects the chemistry of our brains in a way that can enhance our attention and improve our brain health.

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Alzheimer’s Genetically Linked to Cardiovascular Disease – Study

Studying DNA from more than 1.5 million people, an international team of researchers — led by Washington University School of Medicine in St. Louis and the University of California, San Francisco — has identified points of DNA that increase the risk of cardiovascular disease and also heighten the risk for Alzheimer’s disease, according to an article in Neuroscience News.

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Scientists have long been aware of connections between variations of the APOE gene, which is involved in cholesterol and lipid metabolism, and Alzheimer’s disease. That gene is known to double the risk for Alzheimer’s disease in some patients and increase risk by up to 12 times in others. But in the new study, the researchers identified other DNA points that also appear to be involved both in cardiovascular disease risk and the risk for Alzheimer’s. Continue reading

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Exercise and be happy – Infographic

I have written so many times about the benefits of exercise on the body and brain that this almost seems repetitious. On the other hand, it is nice to see the exact hormones at work.

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On the off chance that you are not familiar with it, please check out my Page – Important facts about your brain – (and exercise benefits.)

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How coffee protects the brain

I am guilty of being a coffee lover. I am so bad that when I see someone on TV carrying a cardboard cup of the brew, I am tempted to make some for myself. So, the following was good news for me.

Scientists have now proved that drinking certain types of coffee can be beneficial to brain health, but how does this popular brew support cognitive function? A new study identifies some of the mechanisms that allow coffee to keep mental decline at bay.

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According to data from the Harvard T.H. Chan School of Public Health in Boston, MA, about 54 percent of all adults in the United States drink coffee on a daily basis.

While drinking coffee can bring both benefits and risks for a person’s health, a 2016 study from the University of Ulster in Coleraine, United Kingdom, concluded that the health benefits of moderate coffee consumption “clearly outweigh” the potential risks.

One of these benefits is that coffee seems to protect the brain against cognitive impairments and boost thinking skills. Continue reading

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AI Could Soon Predict Cognitive Decline Leading to Alzheimer’s Disease – Study

A team of scientists has successfully trained a new artificial intelligence (AI) algorithm to make accurate predictions regarding cognitive decline leading to Alzheimer’s disease.

Dr. Mallar Chakravarty, a computational neuroscientist at the Douglas Mental Health University Institute, and his colleagues from the University of Toronto and the Center for Addiction and Mental Health, designed an algorithm that learns signatures from magnetic resonance imaging (MRI), genetics, and clinical data. This specific algorithm can help predict whether an individual’s cognitive faculties are likely to deteriorate towards Alzheimer’s in the next five years.

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“At the moment, there are limited ways to treat Alzheimer’s and the best evidence we have is for prevention. Our AI methodology could have significant implications as a ‘doctor’s assistant’ that would help stream people onto the right pathway for treatment. For example, one could even initiate lifestyle changes that may delay the beginning stages of Alzheimer’s or even prevent it altogether,” says Chakravarty, an Assistant Professor in McGill University’s Department of Psychiatry. Continue reading

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The brain diet – Study

Scientists at the Medical University of South Carolina (MUSC) have uncovered mechanisms by which high levels of a hormone called FGF23 can reduce brain health.

In results published in the journal PLoS ONE, high levels of fibroblast growth factor 23 (FGF23) were associated with structural changes in the brain’s frontal lobes. High FGF23 levels are thought to lead to the vascular calcification seen in patients with chronic kidney disease. The study showed that such a process may also affect the brain in patients without chronic kidney disease but with elevated cardiovascular risk factors, according to Leonardo Bonilha, M.D., Ph.D., associate professor of neurology in the MUSC Department of Medicine and director of the study.

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“We found that there is a relationship between high levels of FGF23 and a form of structural compromise in the brain,” said Bonilha.

FGF23 is produced in the bone. Normally, FGF23 works in the kidneys and the gut to regulate levels of calcium and phosphate in the body. It is thought to be increased in people who eat a diet high in phosphates, which are often found in foods with preservatives. In people with chronic kidney disease or in those who consume a diet high in phosphates, can be a calcification of their arteries, which can cause heart attack or stroke. FGF23 may be the reason. Continue reading

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About that aging brain …

They say you can’t teach old dogs new tricks, but new research shows you can teach an old rat new sounds, even if the lesson doesn’t stick very long.

For the record I wrote a post on that damaging cliche about teaching old dogs new tricks. You can read it here – Of cats and dogs and cliches ….

Researchers at the Montreal Neurological Institute and Hospital (The Neuro) of McGill University examined the effects of aging on neuroplasticity in the primary auditory cortex, the part of the brain that processes auditory information. Neuroplasticity refers to the brain’s ability to modify its connections and function in response to environmental demands, an important process in learning.

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Plasticity in the young brain is very strong as we learn to map our surroundings using the senses. NeuroscienceNews.com image is in the public domain.

Plasticity in the young brain is very strong as we learn to map our surroundings using the senses. As we grow older, plasticity decreases to stabilize what we have already learned. This stabilization is partly controlled by a neurotransmitter called gamma-Aminobutyric acid (GABA), which inhibits neuronal activity. This role of GABA was discovered by K.A.C. Elliot and Ernst Florey at The Neuro in 1956. Continue reading

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Filed under aging, aging brain, aging myths, brain, brain exercise, brain function, brain health, successful aging, Uncategorized

Alzheimer’s symptoms may be predicted during eye exam

With three cases of Alzheimer’s Disease or dementia in my family I have serious interest in all variations of cognitive impairment. Hence, this latest work from Washington University School of Medicine.

It may be possible in the future to screen patients for Alzheimer’s disease using an eye exam.

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Using technology similar to what is found in many eye doctors’ offices, researchers at Washington University School of Medicine in St. Louis have detected evidence suggesting Alzheimer’s in older patients who had no symptoms of the disease.

Their study, involving 30 patients, is published Aug. 23 in the journal JAMA Ophthalmology. Continue reading

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Largest brain study of 62,454 scans identifies drivers of brain aging

One of  my favorite (and most popular) posts is Exercise, Aging and the Brain. I wrote it in 2011 and more than 11,000 people have read it. Because of Alzheimer’s and dementia residing in my immediate family, I am very interested in the brain and anything that affects it. So, this study from Medical Express hit me right where I live.

In the largest known brain imaging study, scientists from Amen Clinics (Costa Mesa, CA), Google, John’s Hopkins University, University of California, Los Angeles and the University of California, San Francisco evaluated 62,454 brain SPECT (single photon emission computed tomography) scans of more than 30,000 individuals from 9 months old to 105 years of age to investigate factors that accelerate brain aging. SPECT tomography) evaluates regional cerebral blood flow in the brain that is reduced in various disorders.

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Lead author, psychiatrist Daniel G. Amen, MD, founder of Amen Clinics, commented, “Based on one of the largest brain imaging studies ever done, we can now track common disorders and behaviors that prematurely age the brain. Better treatment of these disorders can slow or even halt the process of brain aging. The cannabis abuse finding was especially important, as our culture is starting to see marijuana as an innocuous substance. This study should give us pause about it.” Continue reading

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Exercise: Better starting later than never – Harvard

Eat less; move more; live longer. It’s never too late to start.

Exercising regularly throughout life is the best way to keep your heart healthy. But starting to exercise even in late middle age may lessen the risk of heart failure, according to a report in the May 15 issue of Circulation. Heart failure, a gradual decline in the heart’s ability to pump enough blood to meet the body’s needs, affects about 6.5 million people in the United States.

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The study involved more than 11,000 people who were part of a long-running project begun in the late 1980s, the Atherosclerosis Risk in Communities Study. Every six years, participants got medical testing and filled out questionnaires about their physical activity.

People who followed federal recommendations for physical activity (see How much physical activity do you need?) for the first 12 years of the study had the lowest risk of heart failure—31% lower than people who didn’t exercise at all. But people who increased their physical activity levels starting around age 60 over a period of just six years lowered their risk by 12%.

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