Jimmy Carter Celebrates His 100th Birthday

Jimmy Carter has become the first U.S. president to turn 100 years old. There are 101,000 Americans aged 100 and older. The centenarian population is expected to quadruple over the next 30 years. But how can you live to 100? Exercise will help you age gracefully, says Dr. Scott Kaiser. "When it comes to healthy aging, exercise is the closest thing we have to a miracle drug," he says. Inside Edition's Steven Fabian has more.