New Posts to Health News from Medical News Today on Aug 25, 2013:
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1) Red meat may raise Alzheimer's risk
http://feedproxy.google.com/~r/mnt/healthnews/~3/NYhv7en1kL8/265216.php
Featured Article
Academic Journal
Main Category: Alzheimer's / Dementia
Also Included In: Nutrition / Diet; Neurology / Neuroscience
Article Date: 25 Aug 2013 - 2:00 PDT
Eating too much red meat, which raises brain levels of iron, may heighten the risk of developing Alzheimer's disease, researchers from the Semel Institute for Neuroscience and Human Behavior at UCLA reported in the Journal of Alzheimer's Disease.
As background information, the authors explained that iron can accelerate the damaging reactions of free radicals. Over time, iron builds up in brain gray matter regions and appears to contribute to the risk of developing Alzheimer's disease and other age-related illnesses.
Alzheimer's disease has been an exceptionally challenging enemy to defeat. Its number 1 risk factor is aging - something none of us can prevent.
Most scientists and specialists agree that Alzheimer's [...]
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2) Scientists uncover secrets of sleep effect on tasks
http://feedproxy.google.com/~r/mnt/healthnews/~3/FOagzUqkmSY/265113.php
Featured Article
Academic Journal
Main Category: Neurology / Neuroscience
Also Included In: Sleep / Sleep Disorders / Insomnia
Article Date: 25 Aug 2013 - 0:00 PDT
Sleep is well-known to help us better understand what we have learned. But now, researchers believe they have discovered exactly how sleep helps our brains to better learn specific motor tasks, such as typing or playing the piano.
The study, published in the Journal of Neuroscience, is the first to use three different brain scans in order to determine changes in particular brainwaves and the exact location of changed brain activity in specific motor learning subjects.
Researchers carried out an analysis of 15 subjects who volunteered for motor learning experiments, which involved a series of finger-tapping tasks.
For the first 3 nights, the participants slept at whatever time they wanted to. During this period, their [...]
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3) A step toward better targets for anxiety treatments
http://feedproxy.google.com/~r/mnt/healthnews/~3/dG0S5LvWRdc/265152.php
Main Category: Anxiety / Stress
Also Included In: Psychology / Psychiatry
Article Date: 25 Aug 2013 - 0:00 PDT
Anxiety disorders, which include post-traumatic stress disorder, social phobias and obsessive-compulsive disorder, affect 40 million American adults in a given year. Currently available treatments, such as antianxiety drugs, are not always effective and have unwanted side effects.
To develop better treatments, a more specific understanding of the brain circuits that produce anxiety is necessary, says Kay Tye, an assistant professor of brain and cognitive sciences and member of MIT's Picower Institute for Learning and Memory.
"The targets that current anti-anxiety drugs are acting on are very nonspecific. We don't actually know what the targets are for modulating anxiety-related behavior," Tye says.
In a step toward uncovering better targets, Tye and her colleagues [...]
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