Σάββατο 24 Μαρτίου 2012

ScienceDaily: Top Health News

ScienceDaily: Top Health News


Learning best when you rest: Sleeping after processing new info most effective

Posted: 23 Mar 2012 05:55 PM PDT

Nodding off in class may not be such a bad idea after all. New research shows that going to sleep shortly after learning new material is most beneficial for recall.

Highly flexible despite hard-wiring: Even slight stimuli change the information flow in the brain

Posted: 23 Mar 2012 05:53 PM PDT

When looking at an optical illusion that can appear as either one cup or two faces, which do you see first? What we believe we see in one of the most famous optical illusions changes in a split second; and so does the path that the information takes in the brain. Changes in the information processing can be triggered even by a slight stimulus, such as a scent or sound, at the right time.

'Bed-of-nails' breast implant deters cancer cells

Posted: 23 Mar 2012 10:49 AM PDT

Researchers have created an implant that appears to deter breast cancer cell regrowth. Made from a common federally approved polymer, the implant is the first to be modified at the nanoscale in a way that causes a reduction in the blood-vessel architecture that breast cancer tumors depend upon, while also attracting healthy breast cells.

Brain insulin resistance contributes to cognitive decline in Alzheimer's disease

Posted: 23 Mar 2012 10:49 AM PDT

Insulin resistance in the brain precedes and contributes to cognitive decline above and beyond other known causes of Alzheimer's disease, according to a new study.

A new test might facilitate diagnosis and drug development for Alzheimer's disease

Posted: 23 Mar 2012 10:46 AM PDT

Scientists have developed a new method for measurement of aggregated beta-amyloid – a protein complex believed to cause major nerve cell damage and dysfunction in Alzheimer's disease. The new method might facilitate diagnosis and detection as well as development of drugs directed against aggregated beta-amyloid.

Who knew? Fruit flies get kidney stones too

Posted: 23 Mar 2012 10:45 AM PDT

Research on kidney stones in fruit flies may hold the key to developing a treatment that could someday stop the formation of kidney stones in humans, scientists have found.

Biomarkers for autism discovered

Posted: 23 Mar 2012 10:45 AM PDT

There are no acknowledged biomarkers for autism today. An important step towards developing a rapid, inexpensive diagnostic method for autism has now been take. Through advanced mass spectrometry the researchers managed to capture promising biomarkers from a tiny blood sample.

Exercise is not enough for sedentary workers

Posted: 23 Mar 2012 06:38 AM PDT

Good physical condition is a route to better health, and in order to improve it, exercising several days a week is recommended. Although it is possible to become healthier by exercising, long daily sedentary periods cause a health risk despite physical activity.

Simulation explains why HIV cure is elusive

Posted: 23 Mar 2012 06:36 AM PDT

New research shows why the development of a cure and new treatments for HIV have been so difficult for scientists to crack.

Gene expression abnormalities in autism identified

Posted: 22 Mar 2012 09:13 PM PDT

A new study has for the first time identified in young autism patients genetic mechanisms involved in abnormal early brain development and overgrowth that occurs in the disorder. The findings suggest novel genetic and molecular targets that could lead to discoveries of new prevention strategies and treatment for the disorder.

How music helps prevent organ rejection

Posted: 22 Mar 2012 09:12 PM PDT

Music has a fundamental affect on humans. It can reduce stress, enhance relaxation, provide a distraction from pain, and improve the results of clinical therapy. New research demonstrates that music can reduce rejection of heart transplants in mice by influencing the immune system.

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