If new guidelines are followed fully, half the medicine chests in America could eventually be stocked with cholesterol-lowering drugs such as atorvastatin, the generic form of Lipitor.
The rupture of a weakened portion of blood vessel (the dark blue spot in this brain scan of a 68-year-old woman) can prompt bleeding and death of brain tissue — a stroke.
Simon Fraser/Science Source
The superglue developed by scientists sticks to wet, bloody surfaces. Researchers hope the adhesive could one day seal a torn vessels or fix heart defects.
Randal McKenzie / McKenzie Illustrations.