Researchers at the University of Michigan Comprehensive Cancer Center uncovered a novel gene they named THOR while investigating previously unexplored regions of the human genome — or the human genome’s dark matter.

Increasingly, transplant surgeons must initiate a tough conversation: explaining to patients what it means to accept an organ from a person who died from a drug overdose or engaged in other risky behaviors.

In a new study, researchers report people who have experienced an aneurysm have another reason to quit smoking.

It lurks in hospitals and nursing homes, surviving cleaning crews’ attempts to kill it by holing up in a tiny, hard shell. It preys upon patients already weak from disease or advanced age.