A new epidemiology paper on the effects of sedentary or 'sitting' time on diabetes risk matched the curves of television watching and obesity and correlated each hour spent watching TV daily with a 3.4 percent greater risk of developing diabetes.

There may be unconscious race and social class biases in trauma and acute-care clinicians, according to a survey, but they did not affects clinical decisions finds an analysis in JAMA Surgery.

New research shows bacteria can use tiny magnetic particles to effectively create a 'natural battery.' The bacteria can load electrons onto and discharge electrons from microscopic particles of magnetite. This discovery holds out the potential of using this mechanism to help clean up environmental pollution, and other bioengineering applications. 

Researchers from the University of Tübingen, the University of Manchester, and Pacific Northwest National Laboratory, USA, incubated the soil and water dwelling purple bacteria Rhodopseudomonas palustris with magnetite and controlled the amount of light the cultures were exposed to.

Deforestation could impact global food production by triggering changes in local climate, according to research on albedo (the amount of the sun's radiation reflected from Earth's surface) and evapotranspiration (the transport of water into the atmosphere from soil, vegetation, and other surfaces) as the primary drivers of changes in local temperature.

A microstimulator and geomagnetic compass attached to the brains of blind rats allows them to spontaneously learn to use new information about their location and navigate through a maze nearly as well as normally sighted rats.

The findings show the incredible flexibility of the mammalian brain but also suggest that a similar kind of neuroprosthesis could help blind people walk freely through the world.

In a study of more than 6,500 pairs of twins, researchers found that more than half of the differences between pupils performance on the General Certificate of Secondary Education (GCSE) can be explained by differences in genetics.

The research found that although IQ showed the strongest relationship with exam scores other genetically influenced traits such as personality and behavior also explained individual differences in achievement. Intelligence accounted for more of the heritability of GCSE results than any other single domain but the joint contribution of pupils' self-belief, health, behavior problems, personality, well-being, and perceptions of home and school, collectively accounted for the same amount again.