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| Medicine articles |
Considering surgery for the treatment of obesity
For Rebecca Lopez, 65, a diabetic who had been fighting to lose weight since her teens, stomach surgery freed her from having to take insulin to control her disease.
Turn off tv to teach toddlers new words
Toddlers learn their first words better from people than from Teletubbies, according to new research at Wake Forest University.
Exercise stimulates the formation of new brain cells
Exercise has a similar effect to antidepressants on depression. This has been shown by previous research. Now Astrid Bjørnebekk at Karolinska Institutet has explained how this can happen: exercise stimulates the production of new brain cells.
Electrified cells dont get dizzy
An unusual but simple direct electrical connection between neighbouring nerve cells enables a neuronal network in the fly's flight control centre to detect rotational axes. The system remains stable, even when information from single cells is missing, and may thus also be interesting for the coordination of movements in robots.
Brain scans show meditation changes minds, increases attention
For hundreds of years, Tibetan monks and other religious people have used meditation to calm the mind and improve concentration. A new study shows exactly how one common type of meditation affects the brain.
Understanding smooth eye pursuit - the incredible targeting system of human vision
Researchers at the University of Pennsylvania have shed new light on how the brain and eye team up to spot an object in motion and follow it, a classic question of human motor control. The study shows that two distinctly different ways of seeing motion are used - one to catch up to a moving object with our eyes, a second to lock on and examine it.
Immune system's fat problem solved
Monash and Melbourne University scientists have helped unlock a 15-year mystery and advanced understanding of how the human immune system fights disease.
Why we learn from our mistakes
Psychologists from the University of Exeter have identified an 'early warning signal' in the brain that helps us avoid repeating previous mistakes. Published in the Journal of Cognitive Neuroscience, their research identifies, for the first time, a mechanism in the brain that reacts in just 0.1 seconds to things that have resulted in us making errors in the past.
How pain distracts the brain
Anybody who's tried to concentrate on work while suffering a headache knows that pain compellingly commands attention—which is how evolution helped ensure survival in a painful world. Now, researchers have pinpointed the brain region responsible for pain's ability to affect cognitive processing. They have found that this pain-related brain region is distinct from the one involved in cognitive processing interference due to a distracting memory task.
From the corner of the eye: paying attention to attention
Every kid knows that moms have "eyes in the back of their heads." We are adept at fixing our gaze on one object while independently directing attention to others. Salk Institute neurobiologists are beginning to tease apart the complex brain networks that enable humans and other higher mammals to achieve this feat.
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Distorted body image could be linked to abnormal brain function
Body Dysmorphic Disorder (BDD), or dysmorphophobia, is a hidden disease that affects nearly three million Americans. It is hidden because patients with the disease often go to great lengths to hide from the world, often altering their appearance through plastic surgeries, wrongly perceiving themselves to be ugly or having a hideous physical flaw.
Specialized cells allow brain's navigation systems to keep us on our feet
Stepping out of your own head might seem like the last thing one would want to do to avoid tripping and falling, but neuroscientists who study the brain's navigation and orientation systems recognize this change of perspective as a necessity.
Researchers determine how an enzyme plays a key role in gene copying
Cornell researchers have answered a fundamental question about how two strands of DNA, known as a double helix, separate to start a process called replication, in which genes copy themselves.
Human antibodies that block human and animal sars viruses identified
An international team of investigators has identified the first human antibodies that can neutralize different strains of the virus responsible for outbreaks of severe acute respiratory syndrome (SARS). The researchers used a mouse model and in vitro assays (lab tests) to test the neutralizing activity of the antibodies.
Discovery could help bring down price of DNA sequencing
In May, Nobel Laureate James D. Watson, the scientist who co-discovered the structure of DNA, became the first person to receive his own complete personal genome -- all three billion base pairs of his DNA code sequenced. The cost was $1 million, and the process took two months.
Chronically sleep deprived? You can't make up for lost sleep
We've all experienced that occasional all-too-short night of sleep -- staying out too late at a party on a weeknight, studying into the wee hours for a morning exam or being kept up during the night with a sick child. Our bodies try to catch up by making us sleep more and/or more deeply the following night.
Sour taste make you pucker? It may be in your genes
Scientists at the Monell Chemical Senses Center report that genes play a large role in determining individual differences in sour taste perception. The findings may help researchers identify the still-elusive taste receptor that detects sourness in foods and beverages, just as recent gene studies helped uncover receptors for sweet and bitter taste.
Engineered blood vessels function like native tissue
Blood vessels that have been tissue-engineered from bone marrow adult stem cells may in the future serve as a patient's own source of new blood vessels following a coronary bypass or other procedures that require vessel replacement, according to new research from the University at Buffalo Department of Chemical and Biological Engineering.
Evidence that up to 10 percent of human genome may have changed very recently revealed by cu researchers
A Cornell study of genome sequences in African-Americans, European-Americans and Chinese suggests that natural selection has caused as much as 10 percent of the human genome to change in some populations in the last 15,000 to 100,000 years, when people began migrating from Africa.
Research suggests fitness may reduce inflammation
Although a number of studies have suggested that regular exercise reduces inflammation – a condition that is predictive of cardiovascular and other diseases, such as diabetes – it's still not clear whether there is a definitive link. And if such a link exists, the nature of the relationship is by no means fully understood.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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