Health

Activity cuts the risk of Alzheimer's disease and slows cognitive decline, even in the very old, according to a new study.

There's been plenty of evidence for the "use it or lose it" theory of brain capacity. But this study is one of the first to show that activity of all sorts benefits people over age 80, even if they're not "exercising".

Think flossing and brushing is helping to fight off heart disease and stroke? Think again.

An expert panel of dentists and cardiologists, writing in the American Heart Association journal Circulation, says there is no evidence that treating or preventing gum disease has any direct effect on heart health.

That's a big turnaround. For the past decade, the medical establishment has been telling people that cardiovascular disease can be caused by poor oral hygiene. Why the change?

Benjamin Davies, a urologic cancer specialist, doesn't mince words.

On Twitter today, the good doctor said he would fire on the spot any medical resident who biopsied the prostate of an 81-year-old man.

And that would include Warren Buffett, the 81-year-old CEO of Berkshire Hathaway, who disclosed Tuesday that he had been diagnosed with prostate cancer.

In Republican-dominated Nebraska, government leaders often line up together, but lately a political tornado has ripped through this orderly scene.

A political showdown over taxpayer funding of prenatal care for illegal immigrants has produced some unusual political splits and alliances in the statehouse of the Cornhusker State.