Thousands of patients with failing hearts must decide whether to heed a warning from Medtronic and replace a defibrillator in their chest that has a potentially faulty wire.

  Well-designed studies suggest several ways to improve the brain?s viability.

  The ritual of showing how much we care also makes us feel good.

  Mistletoe has a legendary reputation for romance, but it is also widely considered as lethal as it is festive.

  The small business lobbying group that had a big part in derailing Hillary Clinton?s effort to overhaul health care in the early 1990s has staked out its position for the 2008 political season.

  More and more women are using facial acupuncture instead of Botox to attack wrinkles.

  Just as varieties of yoga exist, so do styles of facial acupuncture, each with a different emphasis.

  Johnny Goldberg, widely known as Johnny G, the creator of Spinning, is now trying to grab more attention with the Krankcycle.

  A developing shortage of vaccine against childhood meningitis is expected to inconvenience some pediatricians and parents, but should not become a public health threat, officials said.

  The Canadian government is rushing through legislation to reopen a nuclear reactor that produces most of the world?s supply of a medically important diagnostic isotope.

  American and Chinese regulators signed an accord on Tuesday to strengthen regulation of drugs and medical devices exported to the United States.

  An independent analysis of thousands of older people with diabetes found that those treated with the widely used drug Avandia had significantly elevated risks of heart attack and death.

  A Congressional committee is investigating Merck and Schering-Plough for their handling of a critical clinical trial of Zetia, their blockbuster cholesterol-lowering drug.