Why Cancer Is Replacing Heart Disease as the Leading Cause of Death in the U.S.

Heart disease has long been the number one killer in the United States. But a new study out this week is the latest to suggest that itā€™s only a matter of time before the second leading cause of deathā€”cancerā€”becomes more commonly fatal for the average person. On the bright side, though, thatā€™s largely because weā€™veā€¦