The New England Journal study, involving 1, 400 adults over a 2.5 year period showed that the rate of heart attack 1 month after a negative coronary CT was less than 1 percent, showing that it is a safe test for patient discharge from the ER.

FORBES: Coronary CT Scans May Save You (And Your Hospital)

After years of controversy, the Food and Drug Administration has asked Abbott Laboratories to yank the weight loss drug Meridia, generically known as sibutramine, from the market as a result of a large clinical trial that found the drug increased the rate of heart attack and stroke in patients at high cardiovascular risk.

FORBES: FDA Yanks Meridia -- And Finds It In A Supplement

Changing one's heart rate gradually appears to lower the risk of an attack, Dr. Craig says.

WSJ: Kids With Asthma Play Hard, Too