A new study has linked erythritol, a popular artificial sweetener, to greater risk of blood clots that could lead to heart attacks or strokes. Erythritol is used in sugar substitutes, zero-calorie processed foods, condiments and even oral care products. Dr.

By John Yang, Winston Wilde, Andrew Corkery

The Geisinger hospital system in Pennsylvania has developed a new approach to health care management, including a 90-day "warranty" on certain procedures. Betty Ann Bowser reports.

People should receive angioplasties to unclog arteries in the first 90 minutes following a heart attack, though they often don't receive the treatment in time, the American Heart Association said at a recent meeting. An expert discusses this and other…