Category: Health

Bilingualism May Help to Prevent Dementia

For those considering teaching their children a second language – it just got even more intriguing to do so then it already was.  Researchers from York University recently discovered through their research published in the journal Trends in Cognitive Sciences that being bilingual increases cognitive ability – and also makes the brain more resilient in later life.

This finding may point the way to protections against dementia.  The lead of the study, Dr. Ellen Bialystok, said,

“Previous studies have established that bilingualism has a beneficial effect on cognitive development in children. In our paper, we reviewed recent studies using both behavioral and neuroimaging methods to examine the effects of bilingualism on cognition in adults.”

When monitoring those who speak two languages, they found that a bi-lingual person uses brain regions that help with general attention and with cognitive control.  This skill creates “mental flexibility.”

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In addition, they found that those who are bilingual improve their “cognitive reserve” and that this reserve can actually help to push back the onset of symptoms in people who have dementia.

As Dr. Bialystok said,

“Our conclusion is that lifelong experience in managing attention to two languages reorganizes specific brain networks, creating a more effective basis for executive control and sustaining better cognitive performance throughout the lifespan. It should not be surprising that intense and sustained experience leaves its mark on our minds and brains, and it is now clear that the bilingual brain has been uniquely shaped by experience.”

HIT Workouts: An All-Inclusive Exercise in 4 Minutes Flat

The general belief is that the best amount of exercise to get in a week is 150 hours. Many would claim that this suggestion is in the fact what keeps them overweight or unhealthy, since finding even an hour or two of free time during the day is no small feat.

An amazing solution to this issue is the HIT workout, or High Intensity Training. This miracle worker helps the body lower blood sugar levels, release fatty acids, and improves both aerobic and anaerobic aptitudes within minutes.

This 3-4 minute form of exercise is not new. One HIT routine was developed in the nineties by Dr. Tabata of the National Institute of Fitness and Sports. He dictated a workout that merely included eight 20-second bursts of high activity with a 10-second pause between each one. In total, such a workout would take less than four minutes.

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HIT workouts consist of exercises like squats, pushups, sit ups, lunges, ‘the plank’, crunches and dips. Done in quick succession, these drills will leave the body aching, shaking, sore and continuously burning calories. The body will continue to burn fat and strengthen muscles long after you shower and continue with your day.

The benefits of the HIT workouts are endless. They are short and do not require equipment, can be done as many times a week as possible, burn fat and strengthen the muscles, circulatory system and respiratory system, alleviate stress, boost your mood and focus and improve sleep. There is no excuse; finding a total of four minutes every week is no chore.

Obesity May Cause Cognitive Decline

A recent study involving 250 people has revealed that obesity during senior years may trigger mental decline, and not only physical as previously believed. The study participants, aging through 60s and 70s, were tested over the course of five years. Those with higher body fat levels were less successful in mental ability exams during that time.

The study, conducted by scientists from Seoul National University, measured the waists and BMI levels of each participant regularly, analyzing the information along with the results from ‘Mini Mental State Examinations.’ These short tests included simple questions in math, orientation and memory.

As the researchers predicted, the participants with lower body fat achieved higher scores in the exams. Interestingly, the gap narrowed in people over 70 years of age.

Dae Hyun Yoon, the lead author of the study, said: “Our findings have important public health implications. The prevention of obesity, particularly central obesity, might be important for the prevention of cognitive decline or dementia.”
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The UK Alzheimer’s Society said “We have all heard how a high BMI is bad for our heart but this research suggests it could also be bad for the head.” The organization added that dementia wasn’t observed in the study. However, past research has implied that risk factors for high cholesterol, high blood pressure and heart disease can also cause dementia. Of

According to the Society, a third of people over the age of 65 will die with dementia. Still, this study, as well as others, has suggested that a balanced diet, regular exercise, and healthy blood pressure and cholesterol levels can change the odds.

Tricia Leahey Ph.D. Finds Ripple Effect with Weight Loss

Pick your friends well, and find a group with whom to lose weight. These are the findings of researchers from The Miriam Hospital’s Weight Control and Diabetes Research Center and The Warren Alpert Medical School of Brown University.  In their recent study with lead author Tricia Leahey Ph.D. of The Miriam and Alpert Medical School, they found that shedding pounds can have a ripple effect.

Published in the online journal Obesity, the study showed that, just as obesity can be socially influenced, so too can weight loss.  As Dr. Leahey said,

“We know that obesity can be socially contagious, but now we know that social networks play a significant role in weight loss as well, particularly team-based weight loss competitions. In our study, weight loss clearly clustered within teams, which suggests that teammates influenced each other, perhaps by providing accountability, setting expectations of weight loss, and providing encouragement and support.”

Today, there are many group-based weight loss programs from Weight Watchers to the television show The Biggest Loser.  The question that Leahey's team examined was if having weight-loss teammates and social influence actually makes a difference for an individual's weight loss.

The findings for their research came from a 2009 Shape Up Rhode Island (SURI) campaign that included a 12 week statewide online weight loss competition. It was designed by the study co-author Arjiv Kumar, M.D.  It included 3330 overweight and obese people with 987 teams that averaged between 5 and 11 people each.  There were three parts to the competition including weight loss, pedometer steps and physical activity.

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As Leahey explained,

“This is the first study to show that in these team-based campaigns, who’s on your team really matters. Being surrounded by others with similar health goals all working to achieve the same thing may have really helped people with their weight loss efforts.”

She added, “We’re all influenced by the people around us, so if we can harness this positive peer pressure and these positive social influences, we can create a social environment to help encourage additional weight loss.”

Additional co-authors of the study with Leahey included: Rena R. Wing, Ph.D., director of The Miriam Hospital’s Weight Control and Diabetes Research Center and professor of psychiatry and human behavior at Alpert Medical School; and Brad M. Weinberg, M.D. and Rajiv Kumar, M.D. co-founders of ShapeUp, Inc.

 

Blueberries and Other Fruits Linked to Type 2 Diabetes Prevention

A recent study has found a tentative link between blueberries, apples and pears and a lower risk of type 2 diabetes.

Fruits such as these contain flavonoids, a compound which has been associated with other health benefits as well, such as lower risk of cancer and heart disease.

An Pan, a research fellow at the Harvard School of Public Health, said “People who ate a higher amount of blueberries or apples tended to have a low risk of type 2 diabetes.” He was careful to state, however, that the study’s findings do not prove that the fruits prevent diabetes.

The research was published in the American Journal of Clinical Nutrition. A similar study, published last year, claimed that foods rich in flavonoids, including fruits, vegetables and grains, lowered the risk of high blood pressure as well.

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Type 2 diabetes is the most common form of diabetes. It is often noninsulin-dependent. This condition usually develops slowly, over long periods of time. Those diagnosed with type 2 diabetes are often overweight, or elderly. Genetics, family history, lack of physical activity and a poor diet are some of the leading causes of this condition.

Diabetes can lead to increased levels of sugar in the blood, which is called hyperglycemia. Though fruit sugars, found in all fruits, raise glucose levels dramatically, the fibers and pectin they contain may in fact have diabetes-related health benefits.

Dr. Loren Greene, a professor of medicine not involved in the study added that the research “argues very nicely for the consumption of whole fruit rather than fruit juices.”

What Do You Say About This, First Lady Michelle Obama?

The medical world is filled today with dietary advice.  One day you hear that drinking red wine is good for you; the next day it’s a killer. It’s hard to know which mantra to follow and who to believe. Even First Lady Michelle Obama has gotten into the mix with the Let’s Move! Program and the government’s MyPlate plan.

Now, a new study is putting MyPlate to shame. The Dietary Guidelines for Americans includes “lean meats, poultry, fish…” and many other items.  An Pan, the lead author of the new study published online Monday in the Archives of Internal Medicine, said, “Any read meat you eat contributes to the risk” of dying.

Looking at the Facts

The study looked at 110,000 adults for more than 20 years who filled out questionnaires about their eating habits. The Harvard researchers found dramatic results about eating red meat.  Eating a serving of nuts rather than a serving of beef or pork was associated with a 10% lower risk of death during the 20 year study; substituting poultry or whole grains instead of the meat showed a 14% reduction in mortality risk; using low-fat dairy or legumes showed a 10% decrease and fish offered a 7% decrease.

In the reverse, adding one extra serving a day of processed red meat, which would include such things as a hot dog or two slices of bacon, increased the risk of death by 20% in the course of the study!

In addition, researchers did not find a distinction between processed and unprocessed meats. They thought that only processed meats would lead to increased risks, but were shocked to find that both created the risk equally.

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The Critics Step In

Certainly, there are critics of the study like Carol Koprowski at the USC Keck School of Medicine who say that the research has room for error.  However, many are taking note.

Cattle and pig farmers will, undoubtedly, have much to say about the new study coming from Harvard. Bloggers are voicing their opinions on all sides as well. As one rather cranky writer, Nicholas Lezard, for the Guardian, wrote,

“Give me a stern vegetarian with strong social and ethical principles against the raising and eating of livestock any day of the week, rather than this meek and wowserish approach to eating, and to life.”