LONDON (Reuters) - Daily tablets of large doses of B vitamins can halve the rate of brain shrinkage in elderly people with memory problems and may slow their progression toward dementia, data from a British trial showed on Wednesday,
WASHINGTON (Reuters) - Younger chief executives with high testosterone levels may be more likely to try a hostile takeover -- and to get burned in the attempt, Canadian researchers said on Wednesday.
LONDON (Reuters) - Transmission of the AIDS virus seems to be "out of control" among gay men in France despite an overall fall in the number of new HIV cases in the country, according to a study published on Thursday.
WASHINGTON (Reuters) - An estimated five million uninsured children in the United States were eligible for Medicaid or the Children's Health Insurance Program (CHIP) but were not enrolled in either plan, according to a new report.
NEW YORK (Reuters Health) - African Americans are known to have a higher rate of heart disease and stroke than whites, and a new study suggests that those excess risks emerge at a relatively young age.
WASHINGTON (Reuters) - The Obama administration on Wednesday asked an appeals court for an emergency stay that would lift the ban on federal funding of research involving human embryonic stem cells.
CHICAGO (Reuters) - Drugmaker Wyeth used ghostwriters to play up the benefits and downplay the harm of hormone replacement therapy in articles published in medical journals, a U.S. researcher said on Tuesday.
WASHINGTON (Reuters) - Researchers have identified two new genetic mutations that cause a significant number of the hardest-to-treat kinds of ovarian cancer, and say they point to a new "on-off" switch for tumors.
NEW YORK (Reuters Health) - A new study adds to evidence that infants and toddlers are not too young to develop nasal allergies, particularly if their parents have a history of the bothersome condition.
LONDON (Reuters) - Israeli scientists have found a significant link between taking cholesterol-lowering statin drugs like Lipitor or Crestor and a reduced risk of developing rheumatoid arthritis.