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MS Paint Art - June 2010

Alzheimer's scourge due for ASIA

June 30th 2010 23:28

alzheimer's dementia ASIA statistics
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Asia's fast-aging population will make up more than half of the world's dementia patients in 40 years, with China shouldering the biggest chunk.


Health | China

With very few skilled nursing homes, daycare facilities or plans to build many more, health experts say the region is ill-prepared to cope with the sharp increase in patients needing such specialized and intensive care.

"Asia will bear the burden because of the aging population in China ... figures in China will be tremendous," Dr. David Dai, coordinator of the Hong Kong Alzheimer's Disease Association.

"We are not prepared. The whole of southeast Asia is not prepared," gerontologist Dai said in an interview.

More than 35 million people suffer from Alzheimer's disease (AD) and other forms of dementia, a number expected to almost double by 2030 and pass 115 million by 2050, according to Alzheimer's Disease International (ADI).

Alzheimer's, the most common form of dementia, robs people of their memory and thought processes and, eventually, bodily functions.

In Asia, 13.7 million people had Alzheimer's or other forms of dementia in 2005. That is expected to grow to 23.7 million by 2020 and 64.6 million by 2050.

China alone will have 27 million sufferers by 2050 and India 16 million, according to ADI.


ONE FOR EVERY FAMILY

About 10 percent of those in their 70s can expect to have dementia, and 30 percent of those in their 80s.

"Everyone will experience this, every family. It is now common to live to your 80s," said Peter Yuen, director of the Public Policy Research Institute at the Hong Kong Polytechnic University.

In the United States, the annual amount spent by the government, private insurance and individuals to care for people with AD, is projected to jump more than six-fold to $1.08 trillion by 2050, according to the Alzheimer's Association.

The costs are just as substantial elsewhere.

Yuen, whose mother has Alzheimer's, told a recent AD symposium in Hong Kong that four years of daycare and two years of residential care in a general nursing home in Hong Kong would cost HK$540,000 (US$69,000) per patient.

But even that is an underestimate for 82-year-old Aw Bek-sum, whose children have had to fork out HK$15,000 (US$1,920) each month to take care of her since she was diagnosed with Alzheimer's four years ago. The sum covers daycare, visits to the doctor, a domestic helper and household expenses.

"It's devastating for families with AD patients. There is just not enough support," Yuen said

He proposes long-term financing or some form of pooled insurance for patients who are chronically ill so that services will be made available once the ability to pay is assured.

BUT FEW FACILITIES

Dedicated facilities for AD patients are scarce in Asia.

Hong Kong has 110,000 patients but only 299 places in four daycare centers, and not a single residential care facility.

Many end-stage sufferers are put into general nursing homes where staff are not trained to care for them.

"In nursing homes, their conditions get worse because they are normally tied down and they don't have any social interaction, then they die quickly," Dai said.

In Malaysia, an estimated 50,000 people suffer from dementia.

"Very few private nursing homes are dedicated to the care of the AD sufferer, although some homes will accept a few AD sufferers if they are not behaviorally challenged," said Philip Poi, head of Geriatric Medicine at University Malaya.

"Malaysia is starting to appreciate there is a problem, but currently, care giving is provided mainly by the informal careers such as the spouse or child."

China has up to 8 million dementia patients, but very few hospitals in the country have independent dementia units. By 2030, one in every four Chinese will be over 60.

"Because of China's aging population, the government sees stronger demand for care and medical facilities for the old. It's possible that in the next few years, China will establish more facilities and organizations for old people and dementia patients," said Zhang Shouzi, deputy manager of the Beijing Geriatric Hospital's dementia unit.

(Additional reporting by Venus Wu in Beijing; Editing by Chris Lewis and Jonathan Thatcher)







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Personality and Brain Structure

June 30th 2010 18:14

personality brain structure
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Some people are usually cheerful. Others are more likely to have sad, depressing thoughts. Such traits help make up our personalities.


Chris Gash

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Get Science News From The New York Times » But could such traits actually be related to measurable differences in brain structure?

In a new study in Psychological Science, neuroscientists report that extraverts tend to have a larger-than-average orbitofrontal cortex, a region that sits behind the eyes and is especially active when the brain registers rewards.

“They tend to be more cheerful and assertive and have a tendency to want awards,” said Colin G. DeYoung, the study’s lead author and a psychologist at the University of Minnesota. “It makes sense that they would have more of the machinery to keep track of winning.” The findings said nothing about how volume is linked to behavior, or which preceded which.

The scientists relied on M.R.I. scans of more than 100 adults, after establishing each subject’s personality type using a model known as the Big Five.

Any person, the model purports, can be described by their level of five traits: extraversion, agreeableness, conscientiousness, neuroticism, and openness/intellect.

Those that exhibit high conscientiousness are hard working and self-disciplined. They tend to have a larger-than-average lateral prefrontal cortex, enabling them to plan ahead, parse through complex thoughts and make decisions, the scientists found.

Neurotics, or those who often have negative, depressing thoughts, tend to have a smaller medial prefrontal cortex, a part of the brain known to regulate emotion.

Similarly, being agreeable corresponds to larger size in certain regions.

People who exhibited openness, a personality type that is creative and enjoys new ways of thinking, did not display noticeably different sizes in any regions.

It is important to remember that all such links between brain biology and personality are highly suggestive, and poorly understood. And although personalities are generally stable, they can be affected by experience over a lifetime, Dr. DeYoung said.

In other words, for those with a small medial prefrontal cortex, there is hope that it may grow.







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Exercise, diet and behavior

June 29th 2010 20:29

exercise diet behavior fitness
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By R.J. Ignelzi, UNION-TRIBUNE STAFF WRITER



Getting fit is more than just trimming the waist, toning the biceps and strengthening the heart and lungs. It’s also about building brain power.

“Many of the things that we now know to be associated with heart health and general fitness are also associated with keeping the brain healthy,” says Michael Kabat, neuropsychologist at Scripps Memorial Hospital in La Jolla. “If you smoke, eat a high-fat diet, are inactive and live a lifestyle that promotes vascular disease, you’re not just at risk for heart disease. These things also impact brain function.”

Doing things that challenge the brain, like learning to play the guitar, have been shown to help form new connections between different parts of the brain and repair some that are damaged. Scientists believe if the brain builds up a reserve of strength, it may be able to extend mental fitness longer and stave off memory loss.

When it comes to brain fitness, “it’s never too early or too late to start,” said Dr. Ipsid Vahia, a psychiatrist at the Stein Institute for Research on Aging at the University of California San Diego Medical Center.

The following tips may help you pump up your brain:

Socialization
Staying socially connected may help stimulate the mind and boost our mood, both important in keeping the brain vital.

“Being socially involved and actively engaged in relationships is important for brain health. We’re social animals. By socializing, we learn about other people, we learn from people, and we teach people,” said Geoff Twitchell, lead clinical psychologist for the senior intensive outpatient program at Sharp Grossmont Hospital.

People with strong personal and social support systems are also less likely to be depressed.

“Socialization helps us maintain a good mood, which is important, because when we’re depressed, it impacts brain memory and concentration components,” he added.

Twitchell recommends volunteering or just getting together with like-minded people.

“If you’re a runner, connect with other runners. If you’re a reader, then join a book club. If you play chess, look for other players,” he said. “Being socially engaged can take many forms. The idea is simply to be engaged in your life.”

Physical exercise
One of the most important things people can do at any age to make their brains healthier is to “minimize the time you’re physically sedentary and intellectually sedentary,” Vahia said. “It’s presumed that the reason aerobic exercise works (to benefit the brain) is because it increases oxygenation and blood flow to the brain. In general, people with greater physical fitness tend to have greater brain fitness.”

Instead of playing online “brain games,” people may be better off working up a sweat. Some studies show that physical activity can spark new connections between neurons and produce new brain cells.

It’s also believed that aerobic exercise builds heart and artery resilience, which boosts blood flow to the brain.

Researchers at the University of Washington School of Medicine tested the effects of aerobic training in a clinical trial with men and women diagnosed with mild cognitive impairment. Some of the volunteers began an intense program of aerobic exercise, spending 45 to 60 minutes on a treadmill or stationary bike four days a week.

The others spent the same amount of time performing nonaerobic stretching and balance exercises. After six months, the aerobic exercise group showed significant gains in mental agility, while the nonaerobic group showed continuing declines in tests of thinking speed, word fluency and ability to multitask.

Exercise and diet help with weight control, which is also important for brain fitness. Brains of older individuals who were obese had approximately 8 percent less brain volume than subjects of normal weight, according to research at UCLA School of Medicine. Scientists believe this is due in part to the fact that with added pounds, fat gets deposited in the brain and narrows blood vessels that deliver fuel. Over the long term, this may cause brain cells to die and vital connections and volume to be lost.

Diet
A brain-healthy diet is one that also reduces the risk of heart disease and diabetes, according to the Alzheimer’s Association.

Like the heart, the brain needs the right balance of nutrients, including protein and sugar, to function efficiently. Studies have shown that a high intake of saturated fat and cholesterol clogs the arteries and is associated with higher risk for Alzheimer’s disease.

Research published earlier this year in the Archives of Neurology suggested that a Mediterranean diet appears to be protective against Alzheimer’s.

“A diet rich in fiber, fish, fruits and vegetables and low in fat, cholesterol and red meat is associated with maximizing brain health,” Kabat said.

Eating certain foods appears to help protect brain cells. These foods include dark-skinned fruits and vegetables such as kale, spinach, beets, red bell pepper and eggplant. Fruits such as blueberries, blackberries, plums, red grapes and cherries are recommended. And cold-water fish, which contain beneficial omega-3 fatty acids such as salmon, halibut, mackerel and trout, are also good for the brain.

Mental stimulation
When it comes to the brain, you’ve got to use it or lose it.

“People who continue to remain mentally stimulated and use the brain much like you would work any muscle, will retain (mental) function over time,” Twitchell said.

A study published recently in the journal Nature suggests that computer “brain games” designed to improve cognitive skills don’t live up to their claims.

While brain twisters and crossword puzzles aren’t harmful and may help keep the brain from being stagnant, a more effective brain fitness tool is new learning.

“Learning something new at any age has benefits. Instead of the (brain) games, learn a new language, study theater, take a writing course, all of these can (prevent) you from being intellectually sedentary,” Vahia said.

The more education one has also seems to help protect the brain and keep it in better shape.

“Even with dementia, people with more education tend to develop it later,” Vahia said. “Nobody is exactly sure why, but what we see is that having a higher level of intellectual stimulation can have long-term benefits as you grow older.”

Some scientists believe that the brain’s ability to reorganize pathways with new information or experiences means it’s regularly changing. By challenging the brain, we may be able to generate new brain cells. Education and a stimulating work life when we’re young may help ward off dementia later, perhaps by building a cognitive reserve so small losses in function aren’t as noticeable.

Stress management
Stress, anxiety and depression, even when the symptoms are not severe, “can have a significant impact on a person’s health and well being, including brain health,” Vahia said. “We know that stress reduction and management has positive benefits to the brain and positively impacts physical health.”

The biochemicals released when you’re stressed or depressed “negatively impact the memory areas of the brain,” Twitchell said. “When you’re depressed, everything seems to slow down and come to a halt, including the brain and memory.”

Deep breathing, yoga, meditation or prayer are helpful in calming the body and the mind. Physical exercise is a great way to work off stress. Mindfulness, or focusing on the present, can also help minimize stress and depression.

“We often tend to live in the past, which can cause depression. Or, we focus too much on the future and are constantly racing toward something (which can cause stress and anxiety),” Twitchell said. “Instead, we need to concentrate on the present and enjoy the journey.”







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Baroness Professor Greenfield neuroscientist



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