ORLANDO (USA TODAY) -- It isn't often that a study involving a couple of hundred people shakes up medical science.

ORLANDO, Fla. (AP) -- A new study raises fresh concerns about Zetia and its cousin, Vytorin -- drugs still taken by millions of Americans to lower cholesterol, despite questions raised last year about how well they work.

MILWAUKEE (Canadian Press) -- Men may protect more than their hearts if they keep cholesterol in line: Their chances of getting aggressive prostate cancer may be lower, new research suggests.

NEW YORK - Score another victory for the cheap, cholesterol-lowering wonder drugs known as statins. People getting an artery unclogged or repaired were much less likely to die or have a heart attack afterward if they took preventive doses of the pills before and after their operations, a Dutch study showed.

LOS ANGELES (AP) -- A new generation of blood tests can quickly and reliably show if a person is having a heart attack soon after chest pains start -- a time when current tests are not definitive, two studies found.