New Breakthroughs in Memory Research

[Guest guest]

http://www.healthliesexposed.com/articles/article_2005_09_10_5241.shtml

 

 

New Breakthroughs in Memory Research

 

 

New studies in memory research are providing exciting clues about

memory loss and how to prevent it.

 

Distractions Rather Than Attention

 

One study shows that the short-term memory problems that generally

accompany aging are more a matter of an inability to filter out

distractions than problems with focusing attention.

 

Young adults aged 19 to 30 were compared with older adults aged 60 to

77, using a simple memory test that introduced irrelevant information.

The tests were conducted while the subjects were being scanned using

functional magnetic resonance imaging (fMRI) so that activity in the

brain could be pinpointed.

 

Brain Activity Measured

 

While the younger subjects were able to suppress brain activity in

areas that process irrelevant information, older adults were generally

unable to suppress the distracting information. However, both groups

had similar brain activity in the areas dealing with information

relevant to the task.

 

This could be the key to many cognitive problems accompanying aging.

Now that areas of the brain that are markers for focusing and ignoring

visual information have been identified, it may be possible to use

this knowledge to better assess therapies designed to treat cognitive

disorders.

 

How Fish Oil Works

 

In other memory-related news, scientists have discovered the mechanism

by which the omega-3 fatty acids found in fish oils can help protect

the brain against the cognitive decline associated with Alzheimer's

disease.

 

Docosahexaenoic acid (DHA) -- the most important of the omega-3 fats

-- reduces the levels of a protein known to cause damage in the brains

of Alzheimer's patients. They also discovered that a derivative of the

fatty acid called neuroprotectin D1 (NPD1) is formed in the human

brain, and is essential in protecting against brain cell death.

 

Some 4.5 million Americans currently have Alzheimer's disease. If no

cure is found, as many as 16 million could have the disease by 2050.

 

 

EurekAlert September 11, 2005

 

Journal of Clinical Investigation September 8, 2005

 

News September 9, 2005

 

Dr. Mercola's Comment:

 

Interestingly, six of the 16 older adults in the first study had no

problems ignoring the irrelevant information. Some people are able to

avoid memory loss as they age. The new information about omega-3 acids

may hint at some of the reasons why.

 

It's important to understand that memory problems and Alzheimer's

disease are not the inevitable effects of aging. They are preventable

illnesses, and there are ways to reduce your chances of getting them.

 

Perhaps those seniors who possessed optimal memory skills are

following many of the safe and natural guidelines I recommend to

prevent Alzheimer's disease. Here are a few definitely worth considering:

 

* Consume a high-quality fish or cod liver oil daily.

* Eat a nutritious diet, while increasing your intake of fresh

vegetables high in folate.

* Start an exercise program today!

* Challenge your mind.

* Avoid and remove mercury from your body.

* Try Wild Blueberry IQ, made from wild blueberries, which have

high anthocyanin and antioxidant content that are known to guard

against Alzheimer's and other neurological diseases.

 

It is clear that animal-based omega-3 fats, NOT plant-based ones like

flax seeds, provide the benefits.

 

As I write this, I am looking out of my home in Chicago and I can see

flocks of geese flying south. This is a major clue that winter is fast

approaching and that the amount of available UV light to convert

cholesterol in your skin to vitamin D is also decreasing.

 

So that means it is time to consider switching your source of omega-3

to cod liver oil. I am going to hold off a bit as I have been good

this summer and have been able to get outdoors. I have had plenty of

sun exposure so my vitamin D levels are just about perfect. The best

way to know when to switch would be to get your blood level checked.

But if you are not getting sun exposure, then that becomes a moot

issue and you really do want to consider cod liver oil.