Understanding Irritable Bowel Syndrome

Being in space is like being Superman every day, says Clay Anderson, a NASA astronaut from Omaha, Nebraska. But floating around in zero-G can have some serious consequences for the human body, NASA's experts have learned.

Study: Ginkgo doesn't cut dementia risk

The popular herb ginkgo biloba does not reduce the risk of dementia or Alzheimer's disease, according to a study of more than 1,500 elderly patients who took the supplement. Often touted as a way to preserve aging memories, no large-scale, randomized clinical trial -- until now -- has thoroughly evaluated the safety and effectiveness of ginkgo biloba extract as a way to prevent dementia.

Exercise plus sleep lower cancer risk in women

Regular physical activity may lower a woman's overall risk of cancer, suggests a new government study -- but only if her workouts don't cut into a good night's sleep. Otherwise, lack of shut-eye appears to cancel out much of exercise's protective benefits.

Brush your teeth, save your life?

Oral surgeon Dr. Gary Bouloux is about to pull a diseased wisdom tooth from his patient's mouth, using forceps that look like a pair of silver pliers.

Survey: Half of primary-care docs want to quit

Nearly half the respondents in a survey of U.S. primary care physicians said that they would seriously consider getting out of the medical business within the next three years if they had an alternative.

Fertility treatments linked to some birth defects

A new study from the Centers for Disease Control and Prevention has found that infants born as a result of assisted reproductive technology, or ART -- such as in vitro fertilization and the use of donor eggs -- are two to four times more likely to be born with certain types of birth defects than infants conceived naturally. But, the study's lead author says, the overall risk is still relatively low.

'Pregnant man' expecting a second child

The "pregnant man" who gave birth to a daughter earlier this year says he is expecting a second child.

Fast food puts Med diet on 'endangered list'

Famed for keeping people slim, healthy and living longer, the Mediterranean diet has followers all over the world.

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