A breakthrough using a radioactive dye in the early detection of Alzheimer's and other memory-related diseases has been achieved by University of Pittsburgh researchers.

The dye, attaches to clumps of protein in the brain of people with Alzheimer's disease and could enable doctors to begin treatment with drugs sooner. Pittsburgh Compound B, or PiB, is named after the researchers who developed the drug

It is possible to be fat and fit at the same time, a surprising new study has revealed. In the first national study of its kind, researchers found that at least half of overweight adults, and close to a third of obese men and women, have normal blood pressure, cholesterol and other measures of heart health.

Researchers from the University of Michigan also found that close to a quarter of U.S. adults in the recommended-weight range had risk factors for heart disease or diabetes. That means some 16 million of them are at risk for heart problems, the study said

Air pollution has been identified as the leading cause of mortality and morbidity in Bangladesh, according to a new study.

"If the exposure to urban air pollution were reduced by 20 per cent to 80 per cent, it would result in saving 1,200 to 3,500 lives annually and avoiding 80 to 230 million cases of disease," said Country Environmental Assessment (2006) report released recently

Gastroenterologists are using a new method of freezing damaged cells in the esophagus by using liquid nitrogen to prevent them from turning cancerous.

Also known as Barrett's esophagus, the condition results from ongoing heartburn, in which stomach acid constantly splashes into the esophagus. If left untreated, this can become Barrett's with dysplasia, in which cells start to transform

A six-year-old Texas girl whose brain had been partly removed through surgery to save her life from a rare neurological disease returned home for good Thursday.

Jessie Hall walked out of Cook's Children's Medical Center, where she had been undergoing therapy after her operation at the Johns Hopkins Hospital in Baltimore, Maryland in June. She will continue her therapy at her family's house in Aledo