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Research offers new insights into the specific components of emotional memories, suggesting that sleep plays a key role in what we remember -- and what we forget.

The incidence of adenocarcinoma of the esophagus in the United States increased among both white men and women between 1975 and 2004.

People with schizophrenia have an alteration in a pattern of brain electrical activity associated with learning and memory. Now, researchers have identified in mouse brain tissue a molecular switch that, when thrown, increases the strength of this electrical pattern. The researchers found that adding the brain chemical Neuregulin-1 to the brain tissue boosted the electrical signals that the tissue generated.

Sexual dysfunction is not an inevitable part of aging, but it is strongly related a number of factors, such as mental and physical health, demographics and lifetime experiences, many of which are interrelated. People who had an STD are also more likely to have had sexual experiences over their lifetimes that included more risks and multiple sex partners.

Consumers with hearing loss might think they are saving significantly more by purchasing over-the-counter hearing aids, but they most likely will be disappointed -- or could be taking risks -- when purchasing such aids, according to new research.

Scientists have made a breakthrough in understanding how a type of white blood cell called the eosinophil may help the body to fight bacterial infections in the digestive tract, according to new research in Nature Medicine.

New research sheds light on the biological events by which stem cells in the bone marrow develop into the broad variety of cells that circulate in the blood. The findings may help improve the success of bone marrow transplants and may lead to better treatments for life-threatening blood diseases.

Air pollution has both short- and long-term toxic effects that injure the heart and blood vessels, increase rates of hospitalization for cardiac illness and can even cause death.

Researchers in the UK have developed a robot which is controlled by a biological brain formed from cultured neurons -- the first step to examine how memories manifest themselves in the brain, and how a brain stores specific pieces of data. The key aim is that eventually this will lead to a better understanding of development and of diseases and disorders which affect the brain such as Alzheimer's Disease, Parkinson's Disease, stoke and brain injury.

In the first statewide study of extensively drug-resistant tuberculosis (XDR TB) in the United States, California officials have identified 18 cases of the dangerous and difficult-to-treat disease between 1993 and 2006, and 77 cases that were one step away from XDR TB.