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| Medicine articles |
'Change blindness' isn't magic
A team of scientists at UCL (University College London) has discovered why we often miss major changes in our surroundings - such as a traffic light turning green when we're listening to the radio. Our inability to notice large changes in a visual scene is a phenomenon often exploited by magicians - but only now can scientists put their finger on the exact part of the brain that is so often deceived.
First steps towards growing human lungs for transplant
Scientists have successfully converted human embryonic stem cells into lung cells, taking a first step towards building human lungs for transplantation.
'Out of body' experiences may come from within
Psychologists at The University of Manchester are investigating the idea that out-of-body experiences, commonly thought of as paranormal phenomena, may in fact have their roots in how people perceive and experience their own bodies.
Attacks of king George III's madness linked to key metabolism molecule
Dana-Farber Cancer Institute researchers say they have uncovered a molecular explanation for the episodic attacks of irrational and demented behavior in porphyria, the disease believed to have afflicted "Mad" King George III, the British ruler blamed for the loss of the American colonies in the Revolutionary War.
Neurotransmitter associated with pleasure pathways in the brain
Researchers at the University of Pennsylvania School of Medicine have discovered that the recently identified neurotransmitter orexin (also known as hypocretin) influences reward processing by activating neurons in the lateral hypothalamus region of the brain. By identifying the relationship between orexin neurons and behaviors associated with reward seeking, drug relapse, and addiction, researchers hope to find new treatments for drug addiction.
Protein-rich diet boosts benefit of exercise
Everyone knows that a good weight-loss program combines diet and exercise, but a new University of Illinois study reports that exercise is much more effective when it's coupled with a protein-rich diet.
Chemists find possible reason why redheads have more skin cancer
A Duke University chemist has found differences in how ultraviolet light affects the photochemistry of human pigments that he says may explain why red-haired people are more prone to skin cancer than those with black hair.
Humans have ability to track odors, much like bloodhounds
Though humans may never match the tracking ability of dogs, we apparently have the ability to sniff out and locate odors, according to a new study by scientists from the University of California, Berkeley.
New techniques study the brain's chemistry, neuron by neuron
The human brain is composed of billions of cells, each a separate entity that communicates with others. The chemical interaction of those cells determines personality, controls behavior and encodes memory; but much remains to be understood.
Olive oil contains natural anti-inflammatory agent
A naturally occurring chemical found in extra-virgin olive oils is a non-steroidal anti-inflammatory agent, report scientists from the Monell Chemical Senses Center and collaborators at the University of Pennsylvania, The University of the Sciences in Philadelphia, and Firmenich, Inc.
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A water tale for all seasons
For over 20 years, the U.S. Army Research Institute of Environmental Medicine has studied the effect of temperature and the environment on physical performance.
Expectations about pain can affect its intensity
When it comes to controlling pain, positive thinking can be as powerful as a shot of morphine, according to new brain imaging research at Wake Forest University Baptist Medical Center. Lowering participants' expectations about pain levels reduced both pain-related brain activity and how much pain they felt.
Arrhythmias and sport
We know very little about the risk of sudden death associated with exercise in young competitors, so the benefits versus the hazards of sports activity pose a clinical dilemma. However, we know from a study in the Veneto region of Italy that adolescents and young adults involved in competitive sport had a two and a half times higher risk of sudden death.
The shadow over consumers
New research from the University of Alberta reveals just how self-conscious and easily influenced consumers can be.
Human brain still evolving
Human evolution, University of Chicago researchers report, is still under way in what has become our most important organ: the brain. In two related papers, published in the September 9, 2005, issue of Science, they show that two genes linked to brain size are rapidly evolving in humans.
Research shows where brain interprets 'pitch'
Johns Hopkins researchers have discovered a discrete region of the monkey brain that processes pitch, the relative high and low points of sound, by recognizing a single musical note played by different instruments.
Why melanoma is so malignant
About 60,000 Americans will be diagnosed with melanoma this year, says the American Cancer Society, and 10,000 of those cases will be fatal. If not caught in the early stages, melanoma can be a particularly virulent form of cancer, spreading through the body with an efficiency that few tumors possess. Now, researchers at Whitehead Institute for Biomedical Research have discovered one of the reasons why this particular skin tumor is so ruthless. Unlike other cancers, melanoma is born with its metastatic engines fully revved.
Memory loss in older adults due to distractions
The short-term memory problems that accompany normal aging are associated with an inability to filter out surrounding distractions, not problems with focusing attention, according to a study by researchers at the University of California, Berkeley.
Eating and body weight regulated by specific neurons
Researchers at Yale School of Medicine provide direct evidence that two parts of a neuronal system, one that promotes eating and another that suppresses eating, are critical for the acute regulation of eating and body weight, according to a study published online in the September 11 issue of Nature Neuroscience.
Space cycle tests artificial gravity as solution to muscle loss
A bike-like centrifuge that creates artificial gravity may help astronauts combat muscle atrophy in space. Through a study at the University of California, Irvine, the National Space Biomedical Research Institute (NSBRI) is exploring the concept of a Space Cycle for inflight resistance-training exercise.
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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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