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Computer programmed to identify people with dementia by detecting differences in speech, language and facial expressions.

In a large clinical trial, aspirin did not prolong healthy, independent living.

The chemotactic protein CCL17 attracts immune cells to where they are needed. Now scientists have discovered a completely new function: CCL17 also influences signal transmission in the brain.

Mechanistic link between environmental exposures and susceptibility to the common cold revealed.

Retinal circuits that were thought to be unchanging and programmed for specific tasks are adaptable to different light conditions.

A quick and easy test for viral infections can reduce unnecessary antibiotic use and hospital admissions.

Some disorders are very primate-specific and there is a real need for nonhuman primates in research, scientists say.

Evidence of tiny particles of carbon, typically created by burning fossil fuels, has been found in placentas for the first time.

Nonalcoholic fatty liver disease produces no noticeable symptoms, but one out of every five people with it will go on to develop a more serious conditions such as nonalcoholic steatohepatosis and cirrhosis. Three new studies investigate how mitochondrial energy production is altered by the progress of fatty liver disease.