NEW YORK (Reuters) - Exercise loves company and adores rhythm, so why pound a treadmill when you can dance your cardio workout away? Experts say dance-based workouts, from Zumba to Bollywood aerobics to flexes at the ballet barre, can take your fitness from grind to gladness, with an international flair. "It's killing two birds with one stone," said instructor Rahul Nath, of the Bollywood-inflected aerobics class he developed and teaches at a 24 Hour Fitness center in California. "You're learning the basics of a world dance while burning calories and building up the cardio," he said. ... read more..