Medicine articlesStudy shows darwin was wrong about the origins of chickens
A novel genetic study has revealed why chickens have yellow legs, demonstrating that though Charles Darwin was right about many things, his view on the origins of the chicken was not entirely correct. The study, published February 29 in the open-access journal PLoS Genetics, reveals the genetic basis for the appearance of yellow skin in billions of chickens raised worldwide.
Study shows innate ability to detect the snake in the grass
Adults and very young children apparently have an innate ability to very quickly detect the presence of a snake from among a variety of non-threatening objects and creatures such as a caterpillar, flower or toad, according to a new study by psychologists at the University of Virginia.
Role of exercise in mitigating effects of multiple sclerosis being studied
Of all the debilitating diseases, multiple sclerosis may be among the most cruel, University of Illinois researcher Robert Motl believes. That's because it can literally stop people in their tracks in the prime of their lives.
Ub member of salivation army looks at link between saliva and good and bad bacteria in mouth
Stefan Ruhl says UB's emphasis on dental research -- in particular its formal oral biology department -- was instrumental in his decision to join the university.
Genes hold the key to how happy we are, scientists say
Happiness in life is as much down to having the right genetic mix as it is to personal circumstances according to a recent study.
Quantity and frequency of drinking influence mortality risk
How much and how often people drink — not just the average amount of alcohol they consume over time — independently influence the risk of death from several causes, according to a new study by researchers at the National Institutes of Health (NIH).
To bet or not to bet: how the brain learns to estimate risk
Researchers from EPFL and Caltech have made an important neurobiological discovery of how humans learn to predict risk. The research, appearing in the March 12 issue of the Journal of Neuroscience, will shed light on why certain kinds of risk, notably financial risk, are often underestimated, and whether abnormal behavior such as addiction (e.g. to gambling or drugs) could be caused by an erroneous evaluation of risk.
Overweight, obese women improve quality of life with 10 to 30 minutes of exercise
Sedentary, overweight or obese women can improve their quality of life by exercising as little as 10 to 30 minutes a day, researchers reported at the American Heart Association's Conference on Nutrition, Physical Activity and Metabolism.
New study reveals profound impact of our unconscious on reaching goals
Whether you are a habitual list maker, or you prefer to keep your tasks in your head, everyone pursues their goals in this ever changing, chaotic environment. We are often aware of our conscious decisions that bring us closer to reaching our goals, however to what extent can we count on our unconscious processes to pilot us toward our destined future?
Short-term stress can affect learning and memory
Short-term stress lasting as little as a few hours can impair brain-cell communication in areas associated with learning and memory, University of California, Irvine researchers have found.
Which came first, social dominance or big brains? Wasps may tell
There's new evidence supporting the idea that bigger brains are better. A study of a tropical wasp suggests that the brainpower required to be dominant drives brain capacity.
Gender differences in language appear biological
Although researchers have long agreed that girls have superior language abilities than boys, until now no one has clearly provided a biological basis that may account for their differences.
Memory goes on trial as cornell research suggests that children's testimony may be more reliable
The U.S. legal system has long assumed that some witnesses, such as adults, are more reliable than others, such as children. But Cornell research suggests that children, in fact, are less likely to produce false memories and, therefore, are more likely to give accurate testimony when properly questioned.
Scientists find color vision system independent of motion detection
The vision system used to process color is separate from that used to detect motion, according to a new study by researchers at New York University's Center for Developmental Genetics and in the Department of Genetics and Neurobiology at Germany's University of Würzburg.
Crop scientists discover gene that controls fruit shape
Crop scientists have cloned a gene that controls the shape of tomatoes, a discovery that could help unravel the mystery behind the huge morphological differences among edible fruits and vegetables, as well as provide new insight into mechanisms of plant development.
Nature or nurture - why do some of us see red?
Recent studies using new brain-imaging technology have discovered that a change in the brain's neurochemical activity may be related to increased impulsive aggression (when someone unexpectedly reacts violently with little provocation, as opposed to someone deliberately 'looking for trouble').
Fountain of youth comes in a pill?
There is no drug that can turn back the hands of time, but a Harvard researcher may have stumbled upon one that slows the onward ticking.
Researchers discover second depth-perception mechanism in brain
It's common knowledge that humans and other animals are able to visually judge depth because we have two eyes and the brain compares the images from each. But we can also judge depth with only one eye, and scientists have been searching for how the brain accomplishes that feat.
Researchers find one in six women, one in ten men at risk for alzheimers disease in their lifetime
Researchers from Boston University School of Medicine (BUSM) have estimated that one in six women are at risk for developing Alzheimer's disease (AD) in their lifetime, while the risk for men is one in ten.
A protein that triggers aggressive breast cancer
SATB1 is a nuclear protein well known for its crucial role in regulating gene expression during the differentiation and activation of T cells, making it a key player in the immune system. But SATB1 has now revealed a darker side: it is an essential contributing factor in the most aggressive forms of breast cancer.