Jeremy Manier

Two weeks ago, there were nine planets. Last week, it seemed, there were 12. And now there are eight, as the world's astronomers on Thursday demoted Pluto, that beacon to...

For Cardinal Francis George, the five-year survival rate for bladder cancer is not an abstract number. Five years is the time he has left as the Roman Catholic archbishop of...

On blazing hot days like Monday, when the slightest exertion means a sweat-soaked brow, experts advise drinking water and limiting outdoor activities. But for the nearly 12,000 athletes competing in...

No amount of air filtration can eliminate the health hazards of secondhand smoke, according to a new U.S. surgeon general's report that could challenge a controversial loophole in Chicago's impending...

The stroke that Cook County Board President John Stroger suffered this week was more serious than doctors originally thought, his physicians said Friday, and they are unsure whether he can...

The impulse to water down scientific ideas never goes out of style. In 1620, the Vatican mandated changes to "De revolutionibus," in which Nicolaus Copernicus first proposed that the earth...

Soon after Don Whelpley read a Tribune report Thursday morning about suspect donor tissue that reached Chicago-area patients, he opened a registered letter with disturbing news from his oral surgeon:...

Tissue taken from cadavers in New York by a firm under state and federal investigation has made its way into dozens of transplant patients in at least five Chicago area...

America's largest foodmaker and its biggest cigarette company for years have likened themselves to distant siblings, giants that just happened to be owned by the same parent company. In fact,...

Despite recent moves by the federal government to build drug stockpiles for a possible outbreak of avian flu, some experts say the plans so far have neglected a key possibility:...