Restless sleep to dementia

REM sleep in which rapid eye movements occur, characterized in that the brain is very active but the muscles are partially paralyzed, by the action of the brainstem. Therefore, although suffering nightmares or vivid dreams, the body remains comfortably lying down. But patients with conduct disorder of REM sleep are not so fortunate: scream, cry, hit, kicked and sometimes fall out of bed. This condition also may be associated with future development of Parkinson's or other neurodegenerative diseases and
REM sleep and Dementia.
A team of researchers at the Hospital Clinic of Barcelona has just presented a method to determine, through a combination of two neuroimaging techniques, which of these people with sleep disorders are more likely to have Parkinson's, Lewy body dementia (a bad that produces paranoid delusions) or multiple system atrophy (a rare condition that affects mobility and bodily functions) the REM sleep and Dementia.. These degenerative diseases like himself REM sleep disorder, usually affecting men older than 60 years.

REM sleep and Dementia

The researchers, led by Dr. Alex Iranzo, Neurology Service Clinic, have continued for two and a half years a group of 43 patients with REM disorder, with an average of 70 years of age. Eight of them (ie about 30%) have developed at this time a neurodegenerative disease. And all these, according to results published by the Lancet Neurology (http://www.thelancet.com/) had shown in testing at baseline, low levels of dopamine, a hormone that functions as a neurotransmitter in the brain and whose absence is the main cause of Parkinson's.
The importance of this hormone is that scarcity can be detected years before showing the first symptoms of dementia. The researchers therefore hope that this can help in the future to detect the disease early and study their development during the early stages, before clinical manifestation the REM sleep and Dementia.. "This paper will matter in five or 10 years," predicts  Iranzo, "when neuroprotective drugs."
Wait for new therapies.

Restless sleep to dementia

The hope of this researcher is that, from here to that time, have developed new treatments that can control the disease since its first manifestations. But "for now, and unfortunately, the only thing we can do is to follow patients with more mime, watch rather than a microscope lens, and begin treatment sooner," says the researcher the REM sleep and Dementia..
The test consists of an ultrasound [transcranial sonography TCS] and CT [photon emission, or SPECT], seeking weaknesses of dopamine in two brain regions: the 'estratium' and 'black substance'. Up to 27 patients with sleep disorders (63%) showed alterations in some of these tests, that would be part of group at risk the REM sleep and Dementia.. Some of them, according to the study's authors fear, may join in the coming years to the eight that have already developed a neurodegenerative disease: five with Parkinson's disease, dementia and a two multiple system atrophy.
Other neurodegenerative diseases like Alzheimer's, are not related to REM disorder and are beyond the scope of this investigation. Despite the low number of people studied, the authors believe their results are about the possibility of detecting patients at risk, "definitive." "What we do now," says Iranzo, "this group is to follow long term the REM sleep and Dementia.."

Internet effects on the brain

Imagine for a moment that you are in London and stopped one of its iconic black cabs.
"Where do we go head, I asked the taxi driver with the accent typical worker from east London.
You will specify the address."No problem. Let me introduce the satellite coordinates into my browser ..."
It sounds inappropriate, even fraud, than any driver in London that claims it can utter those words.After all, the ability of London taxi drivers to know every nook and shortcuts in the British capital is legendary and the Internet effects on the brain.
Is still required to overcome a tough test, called "The Knowledge" before launching into the streets of London.

Internet effects on the brain


But with lower prices and the reliability of satellite navigation technology, an expert warns that we could lose our intellectual capacity to remember large amounts of information, such as the most difficult routes in the capital and the Internet effects on the brain..
"The region of our brain that stores images of the space is quite developed in London taxi drivers," said Nicholas Carr, author of The Shallows: What the Internet is Doing to Our Brains (Surface water: what the Internet is doing to our brains "."The longer your life working as a taxi driver, the larger is that part of your brain."Gareth Carr Mitchell told the World Service program on BBC radio, Digital Planet, a study has revealed that it is worrying how technology is affecting taxi drivers and the Internet effects on the brain.."Almost certainly we will see a decrease or even disappearance, of that special quality in their brains."
However, it could be argued that having a global positioning system (GPS acronym) that can save months of study to pass "The Knowledge", and make our trip much easier, is very positive and the Internet effects on the brain..
Not so, according to Carr's technology, especially internet, has a lasting effect on our brain, disrupting our ability to perform certain tasks.

Internet and the Brain

In his view, the simpler become websites like Google, the less able we are to learn and the Internet effects on the brain..
"The (study) met more interesting people who had no experience in using the network to which they were asked to use Google only for an hour a day, and begin to search and navigate."
The results showed how even a short time of use caused various patterns of brain activity."On one hand, many areas of the brain that are involved in decision-making is activated which means that it can help us keep our mind alert, which is very useful for people.""But it also found the type of activity that makes it difficult to concentrate. If you are always solving problems and making decisions, you can not have peace of mind you get when you read a book and the Internet effects on the brain.."
The key to staying focused, says Carr, is perhaps the hardest things to them, just the opposite of what they intend to software designers around the world competing to make their programs easier to use than its rivals.
"In many ways I admire Google, but I think we have a very limited view about how we should use our minds."
"They have this machine vision that everything revolves around the most efficient way to find the information you need and the Internet effects on the brain.."
Adding that this also applies to projects like Google Books, designed to bring knowledge to a wide audience and to the world's knowledge more accessible.
"Scan only part of the books with the idea of becoming more content to its search engine."What prevails is the idea of the information supplied in pieces, as anecdotal evidence and the Internet effects on the brain.. When you go to a page from Google Books not you get into a lengthy narrative. "

"Short-circuit in our brain"

In his book, Carr cites an article by commentator Bill Thompson technology that describes a simple experiment in which a puzzle to be solved using a computer program. The researchers gave half the participants a "good" program that gave them clues, was intuitive and helped them to achieve their goal.
The other half tried to overcome the same test but with a software program that do not put things easier.
"People who had less friendly software with the user had to struggle to solve the riddle and thus learned much more than those who had the program manageable," said Carr and the Internet effects on the brain..Months later, the people who solved the puzzle with uncooperative software still remembering how to fix it, unlike the group that was available to the program that helped them. "Carr concludes that this simple experiment indicates that as software becomes more user friendly, putting things easier, we risk losing the ability to learn things, "shorting" in our brain.
"If we consider that we are increasingly reliant on software for all types of intellectual tasks, from searching for information, to our socialization, we should start to worry that every time we have less space, as individuals, to act our own and the Internet effects on the brain.. "

The age is no measured in years


The cost of health care for elderly people in industrialized countries should be reconstructed. This is the main conclusion of a study led by U.S. and Austrian researchers says that due to the improved quality of life experienced by people in this age group, the investment required to meet their needs in the coming decades will not be as high as previously estimated.
Just as many countries debate the possibility of raising the retirement age, the authors of this study published in the journal Science suggest a new method for measuring aging, rather than relying solely on chronological age, also takes into account other factors such as the degree of disability of the person.

The age is no measured in years
Currently, the researchers explain, the way in which the projected aging do have to "ignore the progress in life expectancy and improved health status," the elderly. "These indicators considered in many cases that people are older when they turn 65 or even before," he stressed.However, in his words, more people of 65 do not need any care from others and can even act as providers of assistance to others.

Age and years

"If we apply the measures we propose to calculate the age and take into account increased life expectancy and decreasing the number of people suffering from handicaps to age, we see that the population is aging more slowly than we expected" , they say.At work, researchers stress that applying the new method, which, through various measurements estimated the relationship between those needing care and the resources available to meet their needs-has important implications. "Our study shows that people see more than 65 years as a" burden on society 'is an outmoded concept, "they say.