The anxiety that often accompanies a chronic illness can chip away at quality of life and make patients less likely to follow their treatment plan. But regular exercise can significantly reduce symptoms of anxiety, a new study shows.

In a world first, the researchers have used ordinary cotton thread and sewing needles to literally stitch together the uniquely low-cost microfluidic analytical device, which is the size of a postage stamp and allows scientists to carry out chemical analyses of minute fluid samples, such as blood and urine.

A new study shows mice infected with the bacteria salmonella develop clinical signs consistent with a deadly and poorly understood human inflammatory disease, a finding that may lead to new therapies.

As spring approaches and people return to outdoor activities, caution should be taken in areas of the country that are home to Loxosceles reclusa, also called the brown recluse spider. A new study found that when patients present with sudden anemia, but the cause is elusive, the brown recluse spider should be part of the differential diagnosis, at least in parts of the nation where the spider is regularly found.

Giant plankton-eating fishes roamed the prehistoric seas for over 100 million years before they were wiped out in the same event that killed off the dinosaurs, new fossil evidence has shown.

Even in sleep , the human body is rarely still--and within it, there is the constant motion of the contents of our cells and the proteins within. [More]

People talk to their plants, pray to human-like gods, name their cars, and even dress their pets up in clothing. We have a strong tendency to give nonhuman entities human characteristics (known as anthropomorphism), but why? A new report examines the psychology behind anthropomorphism.

Scientists have created a new graphene nanostructure called the graphene nanomesh (GNM). The new structure is able to open up a band gap in a large sheet of graphene to create a highly uniform continuous semiconducting thin film. The concept of the GNM therefore points to a clear pathway towards practical application of graphene as a semiconductor material for future electronics.

Call them oil droplets with a brain or even "chemo-rats." Scientists have developed a way to make simple oil droplets "smart" enough to navigate through a complex maze almost like a trained lab rat. The finding could have a wide range of practical implications, including helping cancer drugs to reach their target and controlling the movement of futuristic nano-machines, the scientists say.

A novel compound is highly effective against the pathogenic H5N1 avian influenza virus, including some drug-resistant strains, according to new research.