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More than 80 percent of a sample of Air Force women deployed in Iraq and other areas around the world report suffering from persistent fatigue, fever, hair loss and difficulty concentrating.

Infection with hepatitis B virus (HBV) causes liver cancer in some individuals, but not all strains of the virus are associated with the same degree of risk. If confirmed, the newly reported data could help target chemoprevention strategies in the future.

A new study shows that even slight stress and anxiety can substantially worsen a person's allergic reaction to some routine allergens. Moreover, the added impact of stress and anxiety seem to linger, causing the second day of a stressed person's allergy attack to be much worse.

Scientists have investigated the physiological methods employed by well-trained runners in order to regulate the great physical strain and effort that are needed in order to complete and perform well in marathons and other endurance challenges.

A model for studying the genetics of Angelman syndrome, a neurological disorder that causes mental retardation and other symptoms in one out of 15,000 births, has been developed by biologists at The University of Texas at Austin.

Parkinson disease is a debilitating and lethal neurodegenerative disease, for which there is currently no cure. However, new data have provided evidence to support that idea that agents that disrupt the formation of the abnormal aggregates of a protein called alpha-syn that characterize the brain of individuals with PD might have therapeutic effects.

Ear infections are a painful rite of passage for many children. New research suggests the damage caused by chronic ear infections could be linked to people's preference for fatty foods, which increases their risk of being overweight as they age. Scientists from around the country presented their findings on this unexpected connection at the American Psychological Association's 116th Annual Convention here Thursday.

How the body regulates blood pressure in response to daily stress is the focus of a study geared toward helping people whose pressure is out of control.

Researchers have discovered that a subtle difference in the activity of a pair of genes may be responsible for one of every 10 colon-cancer cases. The work is the first to link this particular gene conclusively as a cause of colon cancer, and it may provide clinicians with a new way to identify people who are at high risk for disease.

Breast cancer patients and their physicians may make more informed, long-term treatment decisions using risk assessment strategies to help determine probability of recurrence, researchers reported.