Category Archives: Healthy brain

6 Steps to sharpen your brain – Harvard

At the risk of repeating myself I have had three cases of dementia/Alzheimer’s Disease in my family. They occurred on both my mother’s and father’s side, so I am totally paying attention to anything that might help to preserve my cognitive powers. I turned 78 in January. Here is Harvard Healthbeat on the subject.

Everyone has the occasional “senior moment.” Maybe you’ve gone into the kitchen and can’t remember why, or can’t recall a familiar name during a conversation. Memory lapses can occur at any age, but aging alone is generally not a cause of cognitive decline. When significant memory loss occurs among older people, it is generally not due to aging but to organic disorders, brain injury, or neurological illness.

14-1-114

Studies have shown that you can help prevent cognitive decline and reduce the risk of dementia with some basic good health habits:

  • staying physically active
  • getting enough sleep
  • not smoking
  • having good social connections
  • limiting alcohol to one drink a day
  • eating a balanced diet low in saturated and trans fats.

Certain health conditions that can impair cognitive skills include diabetes, high blood pressure, sleep apnea, depression, and hypothyroidism. If you have any of these health issues, you can help protect your memory by following your doctor’s advice carefully.

Memory changes can be frustrating, but the good news is that, thanks to decades of research, you can learn how to get your mind active. There are various strategies we can use to protect and improve memory. Here are several you might try.

1. Keep learning

A higher level of education is associated with better mental functioning in old age. Experts think that advanced education may help keep memory strong by getting a person into the habit of being mentally active. Challenging your brain with mental exercise is believed to activate processes that help maintain individual brain cells and stimulate communication among them. Many people have jobs that keep them mentally active, but pursuing a hobby, learning a new skill, or volunteering for a project at work that involves a skill you don’t usually use can function the same way and help improve memory. Continue reading

Advertisements

2 Comments

Filed under aging brain, brain function, brain health, Exercise, exercise benefits, Healthy brain, successful aging

Brain Activity at Rest Provides Clue to Intelligence – Study

I am just starting my ninth year of writing this blog. It began as a weight loss aid, but has morphed into a general good health and longevity tool. As regular readers know, my family has at least three cases of Alzheimer’s Disease/dementia. So, I am totally psyched on my brain and working to keep it healthy and functional since I just turned 78 in January. For that reason, I was fascinated by this study from Sydney, Australia on intelligence.

The ability of an adult to learn and to perform cognitive tests is directly linked to how active the brain is at rest, UNSW researchers have found.

The study, published in the peer-reviewed journal Brain Imaging and Behaviour, found that how well an elderly adult performed on language recall, memory executive function tests was directly related to the activity of the brain while in a resting state, or not doing any specific tasks.

 

brain-rest-intelligencen-neurosciencenews.jpg

“The next stage in research would be to examine if this resting state activity of the brain can be modified by training,” says Professor Perminder Sachdev. NeuroscienceNews.com image is adapted from the UNSW news release.

Researchers from the Centre for Healthy Brain Ageing (CHeBA) at UNSW Sydney used magnetic resonance imaging (MRI) images of the brain in 67 cognitively healthy adults aged between 73 to 90 years. The MRI images captured activity of the whole brain at rest when the participants were not thinking of anything in particular and had their eyes closed. They were also tested on their ability to perform three common neuropsychological tests, administered by trained psychology graduates.

“We found that the human brain is already somewhat pre-determined to do well or perform poorly in testing,” said lead researcher Professor Perminder Sachdev, Co-Director of CHeBA. “Brains differ from each other in terms of resting state activity and it’s not an even playing field. If there is activity in certain brain networks when the brain isn’t doing anything, then that person is predisposed to do better than others on the tasks that rely on that network.”

In the past, similar research had focused on specific brain regions, however this study examined 3D “voxel” images of the whole brain, thereby not constraining the results based on previous knowledge.

The results found that how well an individual did on language and executive function tests was linked with functional connectivity during rest in the frontal and temporal cortices. For memory retrieval, strong resting state activity was located in the inferior temporal cortices.

“The next stage in research would be to examine if this resting state activity of the brain can be modified by training. There is a possibility that training could boost the brain’s intrinsic network, improving overall mental performance and possibly prevent cognitive decline or even dementia,” Professor Sachdev said.

3 Comments

Filed under aging brain, brain, brain function, brain health, Healthy brain, intelligence

Brain Learns to Hit the Repeat Button in Pursuit of Pleasure

In a scientific first, researchers have observed in mice how the brain learns to repeat patterns of neural activity that elicit the all-important feel-good sensation. Until today, the brain mechanisms that guide this type of learning had not been measured directly, according to Neuroscience News.

This research offers key insights into how brain activity is shaped and refined as animals learn to repeat behaviors that evoke a feeling of pleasure. The findings also point to new strategies for targeting disorders characterized by abnormal repetitive behaviors, such as addiction and obsessive-compulsive disorder, or OCD.

pleasure-brain-networks-neurosciencenews.jpg

This image is an artistic interpretation of the authors’ work. Within a myriad of many pixel-like neurons, an obvious pattern emerges from more active red pixels and from parallel, less-active blue pixels: the letters corresponding to the word reward. NeuroscienceNews.com image is credited to Gil Costa.

The study, led by researchers at Columbia University’s Zuckerman Institute, the Champalimaud Centre for the Unknown and the University of California at Berkeley (UC Berkeley), was published in Science.

“It’s no secret that we derive pleasure from doing things we enjoy, such as playing our favorite video game,” said Rui Costa, DVM, PhD, senior author and the associate director and CEO of Columbia’s Zuckerman Institute. “These results reveal that the brain learns which activity patterns lead to feel-good sensations, and reshapes itself to more efficiently reproduce those patterns.” Continue reading

1 Comment

Filed under brain, brain function, brain health, Healthy brain, pleasure

Dim light dims our brains – Study

Regular readers know I do a lot of work on the brain, my brain. Family members have suffered from both Alzheimer’s and dementia. At the age of 78, I want to continue enjoying my life and mental capacity.

Now comes Michigan State University with info on how light affects our mental functioning.

8a247afb6a437b3f2aca2337f66d88a9

Spending too much time in dimly lit rooms and offices may actually change the brain’s structure and hurt one’s ability to remember and learn, indicates groundbreaking research by Michigan State University neuroscientists.

The researchers studied the brains of Nile grass rats (which, like humans, are diurnal and sleep at night) after exposing them to dim and bright light for four weeks. The rodents exposed to dim light lost about 30 percent of capacity in the hippocampus, a critical brain region for learning and memory, and performed poorly on a spatial task they had trained on previously.

The rats exposed to bright light, on the other hand, showed significant improvement on the spatial task. Further, when the rodents that had been exposed to dim light were then exposed to bright light for four weeks (after a month-long break), their brain capacity – and performance on the task – recovered fully.

The study, funded by the National Institutes of Health, is the first to show that changes in environmental light, in a range normally experienced by humans, leads to structural changes in the brain. Americans, on average, spend about 90 percent of their time indoors, according to the Environmental Protection Agency. Continue reading

2 Comments

Filed under aging brain, Alzheimer's disease, brain, brain damage, brain function, dementia, Healthy brain

Miles between Davis and Mozart: Brains of Jazz and Classical Musicians Work Differently

Music is one of the great joys of my life. I have a bluetooth speaker on my bike and I listen to music on my daily rides. My iPhone has about 15 gigabytes of jazz, classics and classic rock so I have the entire spectrum available. Consuming music, however, is not the same as producing it.

Different processes occur in the brains of jazz and classical pianists while playing the same piece of music, researchers report in Neuroscience News.

music-notes-clip-art-png-139835101453

Keith Jarret, world-famous jazz pianist, once answered in an interview when asked if he would ever be interested in doing a concert where he would play both jazz and classical music: “No, that’s hilarious. […] It’s like a chosen practically impossible thing […] It’s [because of] the circuitry. Your system demands different circuitry for either of those two things.” Where non-specialists tend to think that it should not be too challenging for a professional musician to switch between styles of music, such as jazz and classical, it is actually not as easy as one would assume, even for people with decades of experience.

Continue reading

Leave a comment

Filed under brain, brain exercise, brain function, brain health, classical music, Healthy brain, jazz, music, music listening, musicians

9 Rules for Brain-Healthy Eating – Infographic

I don’t know what the Amen Clinic is, but this is a wonderful infographic of foods the help your brain function better.

Don’t forget that, like your body, your brain benefits from physical exercise, too. To read further on that, check out my Page – Important Facts About Your Brain (and Exercise Benefits).

03d0abe01695dc2e91e9af137ae43763

Tony

2 Comments

Filed under brain, brain function, brain health, Healthy brain

HOW DOES THE BRAIN STORE & PROCESS MEMORIES?

Regular readers know what a big fan I am of the brain and its function in our daily life. As a 77 year old, I am also supremely interested in keeping mine functioning into these, my later, years. Check out my Page Important facts about your brain (and exercise benefits.

Tony

venitism

How Does The Brain Store & Process Memories?Every sight, smell, sound, touch, and specific memory is stored in the recesses of your mind—but what parts of your brain store specific types of sensory data? Read on to learn more about where your brain stores these memories and which parts of your brain control specific functions.

View original post

4 Comments

Filed under aging brain, brain, brain function, brain health, Exercise, exercise and brain health, exercise benefits, Healthy brain

Exercise increases brain size, new research finds

Here is another source of the same facts I have been reporting in this blog for some years now. Your brain gets as much benefit from your cardiovascular exercise as your body.

Aerobic exercise can improve memory function and maintain brain health as we age, a new Australian-led study has found.

Tj47GpMT-fCke7VFFVL_0sYa-Zt7-0ZHqTWr4um1KmdFh1SpY_RzDpvc0ckcSR-2

In a first of its kind international collaboration, researchers from NICM and the Division of Psychology and Mental Health at the University of Manchester in the UK examined the effects of aerobic exercise on a region of the brain called the hippocampus, which is critical for memory and other brain functions.

Brain health decreases with age, with the average brain shrinking by approximately five per cent per decade after the age of 40.

Studies in mice and rats have consistently shown that physical exercise increases the size of the hippocampus but until now evidence in humans has been inconsistent. (my emphasis)

Continue reading

Leave a comment

Filed under aging brain, brain, brain function, brain health, cardio exercise, cardiovascular diseases, cardiovascular health, Exercise, exercise and brain health, exercise benefits, Healthy brain

Heart function linked to brain’s memory center – Study

This is fascinating and seems to bolster my thought that exercising the body benefits the brain a great deal. The concept of use it or lose it is widely known and accepted regarding physical development. It seems it also applies to mental makeup.  As above, so below.

Research by a team of Vanderbilt University Medical Center (VUMC) scientists suggests that older people whose hearts pump less blood have blood flow reductions in the temporal lobe regions of the brain, where Alzheimer’s pathology begins.

The brain, which accounts for only 2 percent of total body weight, typically receives 12 percent of blood flow from the heart — a level maintained by complex, automatic processes, which maintain consistent blood flow to the brain at all times.

image

Angela Jefferson, Ph.D., director of the Vanderbilt Memory and Alzheimer’s Center, and colleagues investigated whether lower cardiac index (the amount of blood flowing out of the heart adjusted for body size) correlated with lower blood flow to the brain.

The purpose of the study was to better understand whether reductions in brain blood flow might explain clinical observations in prior research that have linked heart function to cognitive impairment, Alzheimer’s disease and dementia.

“We currently know a lot about how to prevent and medically manage many forms of heart disease, but we do not yet know how to prevent or treat Alzheimer’s disease,” Jefferson said. Continue reading

3 Comments

Filed under aging brain, brain, brain function, Healthy brain, heart, heart health brain health, heart rate, Vanderbilt University

Losing weight through diet and exercise helps brain blood circulation in older diabetics – Study

Once again we have it demonstrated that diet and exercise prove beneficial even to seniors suffering from diabetes, according to HealthyinAging.org.

Type 2 diabetes affects blood circulation. The disease stiffens blood vessels and reduces the amount of oxygen that circulates throughout your body. This includes your brain. When blood flow in the brain is impaired, it can affect the way we think and make decisions.

old-people-dancing

People who have type 2 diabetes are often overweight or obese. These are conditions that may also be linked to cognitive problems (problems with thinking abilities). Lowering calorie intake and increasing physical activity are known to reduce the negative effects of type 2 diabetes on the body. However, the effects of these interventions on cognition and the brain are not clear.

Recently, researchers examined information from a 10-year-long study called Action for Health in Diabetes (Look AHEAD). In this study, participants learned how to adopt healthy, long-term behavior changes. In their new study, the researchers focused on whether participants with type 2 diabetes who lowered calories in their diet and increased physical activity had better blood flow to the brain. The researchers published their findings in the Journal of the American Geriatrics Society. Continue reading

1 Comment

Filed under aging, brain function, brain health, diabetes, Exercise, exercise benefits, Healthy brain, successful aging, Type 2 diabetes

Brain response to stories universal, regardless of language – USC study

There is something universal about what occurs in the brain when it processes stories, regardless of a person’s origin or language, according to a study at the University of Southern California.

New brain research by USC scientists shows that reading stories is a universal experience that may result in people feeling greater empathy for each other, regardless of cultural origins and differences.

3f3734ee1fc175f144d11dba002a0307.gif

Human brain cell

And in what appears to be a first for neuroscience, USC researchers have found patterns of brain activation when people find meaning in stories, regardless of their language. Using functional MRI, the scientists mapped brain responses to narratives in three different languages — English, Farsi and Mandarin Chinese.

The USC study opens up the possibility that exposure to narrative storytelling can have a widespread effect on triggering better self-awareness and empathy for others, regardless of the language or origin of the person being exposed to it.

“Even given these fundamental differences in language, which can be read in a different direction or contain a completely different alphabet altogether, there is something universal about what occurs in the brain at the point when we are processing narratives,” said Morteza Dehghani, the study’s lead author and a researcher at the Brain and Creativity Institute at USC. Continue reading

Leave a comment

Filed under brain, brain exercise, brain function, brain health, brain response to stories, Healthy brain, Uncategorized

Music Has Powerful (and Visible) Effects on the Brain

Regular readers know by now that I am a music lover. I have listened to it all my life. I remember the little radio we had back in the 1940’s when I was growing up. Cut to today when I have a bluetooth speaker on my bike that plays music from the iPhone in my pocket. So, I was thrilled to learn how music has positive impacts on my brain.

music-notes-clip-art-png-139835101453

It doesn’t matter if it’s Bach, the Beatles, Brad Paisley or Bruno Mars. Your favorite music likely triggers a similar type of activity in your brain as other people’s favorites do in theirs.

That’s one of the things Jonathan Burdette, M.D., has found in researching music’s effects on the brain.

“Music is primal. It affects all of us, but in very personal, unique ways,” said Burdette, a neuroradiologist at Wake Forest Baptist Medical Center. “Your interaction with music is different than mine, but it’s still powerful.

“Your brain has a reaction when you like or don’t like something, including music. We’ve been able to take some baby steps into seeing that, and ‘dislike’ looks different than ‘like’ and much different than ‘favorite.’”

To study how music preferences might affect functional brain connectivity – the interactions among separate areas of the brain – Burdette and his fellow investigators used functional magnetic resonance imaging (fMRI), which depicts brain activity by detecting changes in blood flow. Scans were made of 21 people while they listened to music they said they most liked and disliked from among five genres (classical, country, rap, rock and Chinese opera) and to a song or piece of music they had previously named as their personal favorite. Continue reading

2 Comments

Filed under brain, brain function, brain health, Healthy brain, music, music listening, music therapy

Your brain on chocolate – Harvard

At the risk of repeating myself yet again, my family has a history of Alzheimer’s and dementia, so any info on brain health resonates deeply with me.

Here is Dr. Robert H. Shmerling, Faculty Editor, Harvard Health Publications on chocolate and your brain.

100915_fobette-main

Did you know that places where chocolate consumption is highest have the most Nobel Prize recipients? It’s true, at least according to a 2012 study published in the New England Journal of Medicine. Of course, that could be a coincidence. But is it possible that intelligence or other measures of high brain function are actually improved by the consumption of chocolate? A new review summarizes the evidence and concludes with a resounding “maybe.”

Keeping your brain healthy

When it comes to preserving and improving brain function, let’s face it: we need all the help we can get. With age, diseases that cause dementia, such as stroke, Alzheimer’s disease, and Parkinson’s disease, become more common. And since we have an aging population, predictions are that dementia will become much more common in the near future. Yet despite decades of research, there are no highly effective treatments for dementia. Continue reading

3 Comments

Filed under aging brain, brain, brain function, brain health, chocolate, Harvard Health Publications, Healthy brain

Controlling Memory By Triggering Specific Brain Waves During Sleep – IBS

Have you ever tried to recall something just before going to sleep and then wake up with the memory fresh in your mind? While we absorb so much information during the day consciously or unconsciously, it is during shut eye that a lot of facts are dispatched to be filed away or fall into oblivion. A good quality sleep is the best way to feel mentally refreshed and memorize new information, but how is the brain working while we sleep? Could we improve such process to remember more, or maybe even use it to forget unwanted memories?

I would just like to add that my Page – How important is a good night’s sleep? includes further information on how the brain benefits from good sleep habits.

sleep-memory-brain-waves-neurosciencenews.jpg

Scientists at the Center for Cognition and Sociality, within the Institute for Basic Science (IBS), enhanced or reduced mouse memorization skills by modulating specific synchronized brain waves during deep sleep. This is the first study to show that manipulating sleep spindle oscillations at the right timing affects memory. The full description of the mouse experiments, conducted in collaboration with the University of Tüebingen, is published in the journal Neuron.

The research team concentrated on a non-REM deep sleep phase that generally happens throughout the night, in alternation with the REM phase. It is called slow-wave sleep and it seems to be involved with memory formation, rather than dreaming. Continue reading

Leave a comment

Filed under brain, brain function, brain health, good night's sleep, Healthy brain, sleep

Dining hall intervention helped students’ choices

As I have written in some of my blog posts on the brain. It is our frontal lobes that separate us from the rest of the creatures on this earth. That’s where our conscience resides and our decision-making takes place – our impulse control. It is a fact that the frontal lobes are the last to develop, often times this part of the brain is not developed until the individual reaches age 25. Personally, I found this fact to be an excellent explanation of why I made some of the really dangerous choices I did as a teen. It is well to keep this slow development fact in mind when thinking about freshmen in college living away from home for the first time in their lives.

As students transition from high school to college, they enter a critical period for weight gain. Although eating in a buffet-style dining hall offers freedom and flexibility in food choice, many students cite the abundance of food available as a cause for weight gain. As most college students’ diets are low in fruits and vegetables and high in calories, sugar, fat, and sodium, researchers from the University of Toronto and Memorial University of Newfoundland created a cross-sectional study to examine whether messaging encouraging fruit, vegetable, and water intake could influence the habits of university students.

Greendale_cafeteria.png

“Our labeling, focused on beverages and fruits and vegetables, may have been useful to decrease students’ consumption of sugar-sweetened beverages and increase consumption of , fruits, and vegetables,” said lead author Mary Scourboutakos, PhD, post-doctoral researcher at the University of Toronto. Continue reading

Leave a comment

Filed under brain, brain function, brain health, Healthy brain, healthy eating

Brain Detects Disease in Others Even Before it Breaks Out

Because my family history includes both Alzheimer’s Disease and dementia, I am fascinated by every aspect of the brain and its functions. The following is from Neuroscience News.

The human brain is much better than previously thought at discovering and avoiding disease, a new study led by researchers at Karolinska Institutet in Sweden reports. Our sense of vision and smell alone are enough to make us aware that someone has a disease even before it breaks out. And not only aware – we also act upon the information and avoid sick people. The study is published in the scientific journal Proceedings of the National Academy of Sciences (PNAS).

By injecting harmless sections of bacteria, the researchers activated the immune response in participants, who developed the classic symptoms of disease – tiredness, pain and fever – for a few hours, during which time smell samples were taken from them and they were photographed and filmed. The injected substance then disappeared from their bodies and with it the symptoms. NeuroscienceNews.com image is for illustrative purposes only.

Continue reading

1 Comment

Filed under aging brain, brain, brain function, brain health, Healthy brain