Power Up Your Brain
Power Up Your Brain
by David Perlmutter, MD, FACN, ABIHM &
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Raise a Smarter Child by Kindergarten
Raise a Smarter Child by Kindergarten
by David Perlmutter, MD, FACN, ABIHM
The Better Brain Book


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‘Healthy lifestyles’ wane in US

May 31st, 2009

From BBC.Co.Uk:

The number of US adults following a healthy lifestyle has fallen in the last two decades despite increasing public health campaigns, a study shows.

A review of two studies stretching back to 1988 found the proportion of obese adults has crept up to over a third.

Levels of exercise also fell, as did consumption of fruit and vegetables.

The American Journal of Medicine study found those with health problems were no more likely to follow a healthy lifestyle than their fitter peers.

Researchers at the Medical University of South Carolina compared two large-scale studies covering the period 1988 to 2006.

During those 18 years, the percentage of adults aged 40-74 years with a body mass index (BMI) greater than 30 rose from 28% to 36%.

“If we want all Americans to achieve the health benefits of a healthy lifestyle, then all members of society must take action.” said Dr Steven Galson, Acting US Surgeon General
The number of people exercising three times a week or more fell from 53% to 43%, while the number of people eating five portions of fruit and vegetables a day fell by nearly 40%.

At the same time, smoking levels remained the same and moderate drinking slightly increased.

Overall, researchers found, the number of people adhering to all five “healthy habits” – including maintaining a healthy weight and stopping smoking – decreased from 15% to 8%.

This drop “demonstrates that the amount of emphasis by the current health system on prevention and healthy lifestyles may be insufficient,” wrote lead author Dana King.

“The implications of the decreasing rates of healthy lifestyle habits include the possibility of an upswing in cardiovascular morbidity and mortality, and increase in the number of aging persons with disability and decreased quality of life due to the burden of chronic disease.”

Dr Steven Galson, the acting US surgeon general, said: “There is clearly a lot of work that needs to be done.

“If we want all Americans to achieve the health benefits of a healthy lifestyle, then all members of society must take action including parents, educators, community leaders, government as well as the individual.

“Together we can help Americans understand the severity of obesity, the efforts being made to address it, and how to maintain a healthy weight and live a healthy lifestyle.”

Professor Alan Maryon-Davis, president of the UK Faculty of Public Health commented: “This is a wake-up call for the UK. What happens in America often happens over here a few years later.”

Some News You Don’t Want to Take Sitting Down

May 12th, 2009

From WashingtonPost.com:

If you sit for too long, you’ll die. Or at least you may die earlier than those who get up and move around during the day, according to a study published in this month’s issue of Medicine & Science in Sports & Exercise.

The study explored the relationship between sedentary behavior (that is, sitting) and premature mortality by observing a group of more than 17,000 Canadians ages 18 to 90 who took part in the 1981 Canada Fitness Survey. Survey participants rated themselves on how much time they spent sitting in any given week: almost none of the time, a fourth of the time, half of the time, three-fourths of the time, and almost all of the time. During the 12 years that the study followed the subjects, 1,832 of them died. The researchers found that the mortality rate was almost three times higher among the least active than it was among the most active.

The effects were consistent regardless of sex, age, smoking status and body mass index. And they were “independent of leisure time physical activity,” the researchers said. In other words, sedentary behavior is not the same as lack of exercise; even physically fit people who exercised regularly still seem to risk premature death if they sit for prolonged periods during the day.

The authors noted that people in the United States “spend an average of 55 percent of their day in sedentary pursuits” such as watching TV, eating, working at a desk and riding in a car. “In addition to the promotion of moderate-to-vigorous physical activity and a healthy weight, physicians should discourage sitting for extended periods,” the authors wrote.

Those extended periods, they said, result in “metabolic alterations” that cannot be compensated for even if the individual exceeds the daily minimum physical activity guidelines of the American Heart Association.

To reduce your chances of premature mortality by sitting, the authors said, increase your level of daily physical activity and reduce the time you spend sitting per day by taking breaks every 60 to 90 minutes.

Mass. town takes steps to trim fat (really), health care costs

April 27th, 2009

From USAToday.com:
Kelle Shugrue’s 7-year-old son eats fresh fruit and vegetables at his public school, rides his bike along neighborhood paths and walked to school last week as part of a community effort to get kids moving.
The Shugrue family lives in Somerville, Mass., a Boston suburb hailed by health advocates for its seven-year investment in programs fighting childhood obesity and encouraging healthful living.

The model program is beginning to be replicated around the country, a small start on a huge task: preventing the onset of chronic diseases such as diabetes and heart disease that now account for 75% of the nation’s health care spending.

As the Obama administration and Congress tackle an overhaul of the health care system, chronic disease looms as a major impediment to controlling costs.

According to the Partnership to Fight Chronic Disease, 45% of Americans — 133 million people — suffer from at least one chronic disease such as asthma or hypertension. Because many of the conditions are brought on or exacerbated by obesity, which has doubled nationwide since 1987, experts say they can be prevented or at least better managed.

“Improving the management of chronic disease is a critical component of our plan to drive down the skyrocketing cost of health care,” says Nancy-Ann DeParle, director of the White House Office for Health Reform. “Two-thirds of Medicare spending is for beneficiaries with five or more chronic conditions.”

A down payment is coming.

In February, as part of the $800 billion economic stimulus package, Congress approved $1 billion for disease prevention and wellness programs. A third of that money is slated for immunizations; two-thirds for new programs to prevent chronic diseases.

The Department of Health and Human Services plans to announce early this summer how it will use that new money. “We want to help prevent disease and illness before Americans end up at the doctor’s office or the emergency room,” says Nick Papas, a department spokesman.

Experts at the disease partnership and in Congress say controlling chronic disease requires a two-pronged approach: preventing diseases before they begin and doing a better job helping patients manage their chronic conditions once they develop.

The issue will be up for discussion in the Senate on Tuesday when Finance Committee Chairman Max Baucus, D-Mont., holds the first of three roundtable discussions on health care reform. The subject of the session, which will include insurance company CEOs, doctors and nurses, and policy analysts, is how to make the health care delivery system more effective, including by better managing chronic care.

Building blocks of fitness

Somerville’s experiment began in 2002, when researchers from Tufts University decided to find out whether efforts to promote exercise and healthful eating could help prevent obesity among schoolchildren.

The program, Shape Up Somerville, was first aimed at elementary school kids, 44% of whom were either overweight or at risk of becoming overweight.

With grants from the federal Centers for Disease Control and Prevention and philanthropic groups, the researchers had schools replace French fries, candy, soda and other unhealthful foods with fresh fruit, skim milk and other nutritious choices. The city added bike lanes and pedestrian crosswalks to encourage people to exercise. Restaurants offered more healthful items on menus; residents planted community gardens.

After just one year, the schoolchildren first targeted showed results: They gained 15% less weight than other average kids their age. Twice as many people were riding bikes along the community’s bike paths.

“It’s powerful to see those numbers change like that,” says Nicole Rioles, who runs the ongoing Shape Up program.

Shugrue, 37, says she and her husband always have promoted healthful choices at home and she’s happy that the schools and the community reinforce that message for their second-grader, Henry, rather than undermine it.

Dozens more cities from Oakland to Louisville are following Somerville’s lead to develop similar programs. “We would love to give our two cents to the White House and anyone else planning for really healthy communities,” Rioles says.

Without such efforts, the Partnership to Fight Chronic Disease and other groups say, the government will never get a handle on health care costs.

According to the chronic disease partnership, the federal government spent $586 billion in 2008 on patients with at least one chronic condition, such as diabetes or heart disease.

Kenneth Thorpe, director of the Partnership, says those people who already have developed chronic conditions must be better managed so that their conditions don’t deteriorate and they don’t end up with costly hospital stays.

He favors community health teams made up of nurse practitioners and coordinators to monitor patients’ progress and make sure they take their medication.

Preventative steps

DeParle says the Obama administration is taking steps to improve care, even before the health care debate heats up.

“The administration has already begun reforming Medicare’s payment by rewarding doctors for better quality, efficiency and coordination of care,” she says.

Jeffrey Levi, director of the non-profit Trust for America’s Health, is more focused on solving the problem before it begins.

Levi says he’s sure changes to the health-care system will include funding and programs to prevent chronic disease. That wasn’t the case in 1993-94, during the last overhaul effort, when he said public health advocates were “banging at the door” to get heard.

“I am very confident (legislation) will include a serious commitment to public health and prevention,” Levi says.

Healthy Food, Exercise, Keys to Cancer Prevention

February 28th, 2009

From medpagetoday.com
Better eating and physical activity habits could prevent about a third of all cancers in the U.S., a new report says.

The figure — from Policy and Action for Cancer Prevention — does not include the cancers that could be prevented by not smoking, a habit estimated to cause another third of malignancies.

“We know already that a huge proportion of cancers are preventable by eliminating smoking,” said Michael Marmot, M.B.B.S., Ph.D., of University College London.

“The message coming out of this report is that many, many more cancers are preventable by healthy patterns of diet, weight, and physical activity,” said Dr. Marmot, who was the chair of the panel that produced the report.

Published today by World Cancer Research Fund and the American Institute for Cancer Research, the report was to be presented to U.S. lawmakers on Capitol Hill this morning.

It is based on 2007 findings about how different patterns of diet and physical activity affect risk of cancer. That earlier data was combined with dietary surveys from four countries — the U.S., Great Britain, China, and Brazil — to arrive at policy recommendations.

In each of the four countries, the current report says, about a third of cancers could be prevented by proper diet, more physical activity, and avoiding obesity, although the details vary.

For instance, the report authors estimate that about 11% of prostate cancer in the U.S. could be prevented, but the same changes would yield a 20% decrease in Great Britain.

That’s probably because intake of foods containing lycopene (from cooked tomatoes) is lower in Great Britain, according to Tim Byers, M.D., of the University of Colorado Cancer Center and a member of the panel that wrote the report.

Conversely, about 70% of endometrial cancer in the U.S. could be prevented, compared with 56% in Great Britain — probably, Dr. Byers said, because of the greater prevalence of obesity in the U.S.

The report makes recommendations for action by nine groups of so-called “actors” — including governments, industry, schools, and individuals.

“We’re asking all levels of society to build cancer prevention into everything they do,” said Shiriki Kumanyika, Ph.D., of the University of Pennsylvania School of Medicine, also a member of the writing panel.

Among the recommendations:

Governments should require widespread walking and cycling routes to encourage physical activity.
Industry should give a higher priority for goods and services that encourage people to be active, particularly young people.
The food industry should make public health an explicit priority.
Schools should encourage physical activity and provide healthy food.
Schools, workplaces, and institutions should not have unhealthy foods available in vending machines.
Health professionals should lead in providing information about public health, including cancer prevention.
Individuals should use independent nutrition guides and food labels to ensure they buy healthy food.

Dr. Marmot said the 2007 report on the science of cancer pinned down the avoidable causes. The current report, he said, focuses on the “causes of causes” — the social and cultural barriers to healthy patterns of behavior.

“The 2007 expert report identified the specific choices that people can make to protect themselves against cancer, but actually making those healthy choices remains difficult for many people,” Dr. Kumanyika said.

“The policy report takes the next step — it identifies opportunities for us as a society to make those choices easier,” she said.

Dr. Byers noted that the numbers in the report are based on a range of assumptions.

“Having said that,” he said, “the figures in this report are as good an estimate as it is possible to achieve about the proportion of cancer cases that could be prevented through healthy diet, regular physical activity, and maintaining a healthy weight.”

“On a global level every year,” he added, “there are millions of cancer cases that could have been prevented. This is why we need to act now before the situation gets even worse.”

At bottom, Dr. Marmot said, “this is a very optimistic report. There is much we can do to prevent cancer.”

Here’s looking at you: why exercise is good for the eyes

February 11th, 2009

From latimes.com

We all know that exercise makes for a stronger heart and reduces the risk of heart disease, diabetes and a number of other conditions. But now there’s more to add to the list: Vigorous exercise also may help prevent age-related macular degeneration and cataracts, both of which can affect vision.

Two new studies looked at data from almost eight years of follow-up from the National Runners’ Health Study. In one, 110 men and 42 women received a clinical diagnosis of age-related macular degeneration during the follow-up. The more the runners ran, the less risk they had for developing age-related macular degeneration. Running an average of 2 to 4 kilometers a day reduced the risk by 19%, and running more than 4 kilometers per day reduced the risk by 42% to 54%, compared with those who ran less than 2 kilometers a day. Running an extra kilometer per day was associated with a 10% decrease in relative risk. Numbers were adjusted for age, sex, diet and smoking history.

Another study examined the effects of running on developing cataracts. Among the same group of runners, 733 men and 179 women reported having cataracts during the follow-up. Men who ran had a lower risk of cataracts, even after adjusting for body mass index. Those who ran 64 or more kilometers a week had a 35% lower cataract risk than those who ran less than 16 kilometers per week. And those with better cardiovascular fitness were also at less risk than men who were less fit.

Though it’s not fully known why a link exists between fitness and preventing these conditions, study author Paul T. Williams, a staff scientist with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory, believes that exercise could provide similar protective benefits for the eyes as it does for the heart and other systems.

“There are overlaps,” he says. Higher levels of HDL (good) cholesterol are associated with a lower risk of age-related macular degeneration. Also, C-reactive protein, which shows higher levels during inflammation, may contribute to cataracts. Exercise typically boosts levels of HDL cholesterol and lowers levels of C-reactive protein.

The study appeared in the January issue of Investigative Ophthamology & Visual Science