A branch of the World Health Organization announced Tuesday cell phones are “possible carcinogens” — a statement that was met with skepticism from many American cancer experts.
The statement came from the International Agency for Research on Cancer, which convened 30 international experts in Lyon, France, this past week to sort through data on cell phone safety, reports Lancaster Eagle Gazette. (more…)
People’s moral responses to similar situations change as they age, according to a new study at the University of Chicago that combined brain scanning, eye-tracking and behavioral measures to understand how the brain responds to morally laden scenarios.(more…)
COLUMBIA, Mo. – Scientists have known for years that playing violent video games causes players to become more aggressive. The findings of a new University of Missouri (MU) study provide one explanation for why this occurs: the brains of violent video game players become less responsive to violence, and this diminished brain response predicts an increase in aggression.
“Many researchers have believed that becoming desensitized to violence leads to increased human aggression. Until our study, however, this causal association had never been demonstrated experimentally,” said Bruce Bartholow, associate professor of psychology in the MU College of Arts and Science.(more…)
In a first-of-its-kind study comparing human walking and running motions – and whether the hips, knees or ankles are the most important power sources for these motions – researchers at North Carolina State University show that the hips generate more of the power when people walk, but the ankles generate more of the power when humans run. Knees provide approximately one-fifth or less of walking or running power.(more…)
COLLEGE PARK, Md. — Using a tiny bloodless worm, University of Maryland Associate Professor Iqbal Hamza and his team have discovered a large piece in the puzzle of how humans, and other organisms, safely move iron around in the body. The findings, published in the journal Cell, could lead to new methods for treating age-old scourges – parasitic worm infections, which affect more than a quarter of the world’s population, and iron deficiency, the world’s number one nutritional disorder.(more…)
EAST LANSING, Mich. — While recent studies have shown long-term exposure to estrogen can be a danger to women – overturning physicians’ long-held beliefs that the hormone was good for their patients’ hearts – the process by which estrogen induces high blood pressure was unclear.
In a new study, Michigan State University researchers found long-term estrogen exposure generates excessive levels of the compound superoxide, which causes stress in the body. The buildup of this compound occurs in an area of the brain that is crucial to regulating blood pressure, suggesting that the estrogen-induced buildup causes increased blood pressure. (more…)
Researchers at UCLA’s Jonsson Comprehensive Cancer Center have discovered a way to “amp up” the power of killer T cells known as CD8 cells in the immune system, making them more functional for longer periods of time and boosting their ability to multiply and expand within the body to fight melanoma.(more…)